*
* @param WP_Term[]|int[]|string[]|string $terms Array of terms or a count thereof as a numeric string.
* @param string $object_ids Comma separated list of object IDs for which terms were retrieved.
* @param string $taxonomies SQL fragment of taxonomy names from which terms were retrieved.
* @param array $args Array of arguments for retrieving terms for the given
* object(s). See wp_get_object_terms() for details.
*/
return apply_filters( 'wp_get_object_terms', $terms, $object_ids, $taxonomies, $args );
}
/**
* Adds a new term to the database.
*
* A non-existent term is inserted in the following sequence:
* 1. The term is added to the term table, then related to the taxonomy.
* 2. If everything is correct, several actions are fired.
* 3. The 'term_id_filter' is evaluated.
* 4. The term cache is cleaned.
* 5. Several more actions are fired.
* 6. An array is returned containing the `term_id` and `term_taxonomy_id`.
*
* If the 'slug' argument is not empty, then it is checked to see if the term
* is invalid. If it is not a valid, existing term, it is added and the term_id
* is given.
*
* If the taxonomy is hierarchical, and the 'parent' argument is not empty,
* the term is inserted and the term_id will be given.
*
* Error handling:
* If `$taxonomy` does not exist or `$term` is empty,
* a WP_Error object will be returned.
*
* If the term already exists on the same hierarchical level,
* or the term slug and name are not unique, a WP_Error object will be returned.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @since 2.3.0
*
* @param string $term The term name to add.
* @param string $taxonomy The taxonomy to which to add the term.
* @param array|string $args {
* Optional. Array or query string of arguments for inserting a term.
*
* @type string $alias_of Slug of the term to make this term an alias of.
* Default empty string. Accepts a term slug.
* @type string $description The term description. Default empty string.
* @type int $parent The id of the parent term. Default 0.
* @type string $slug The term slug to use. Default empty string.
* }
* @return array|WP_Error {
* An array of the new term data, WP_Error otherwise.
*
* @type int $term_id The new term ID.
* @type int|string $term_taxonomy_id The new term taxonomy ID. Can be a numeric string.
* }
*/
function wp_insert_term( $term, $taxonomy, $args = array() ) {
global $wpdb;
if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
/**
* Filters a term before it is sanitized and inserted into the database.
*
* @since 3.0.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param string|WP_Error $term The term name to add, or a WP_Error object if there's an error.
* @param string $taxonomy Taxonomy slug.
* @param array|string $args Array or query string of arguments passed to wp_insert_term().
*/
$term = apply_filters( 'pre_insert_term', $term, $taxonomy, $args );
if ( is_wp_error( $term ) ) {
return $term;
}
if ( is_int( $term ) && 0 === $term ) {
return new WP_Error( 'invalid_term_id', __( 'Invalid term ID.' ) );
}
if ( '' === trim( $term ) ) {
return new WP_Error( 'empty_term_name', __( 'A name is required for this term.' ) );
}
$defaults = array(
'alias_of' => '',
'description' => '',
'parent' => 0,
'slug' => '',
);
$args = wp_parse_args( $args, $defaults );
if ( (int) $args['parent'] > 0 && ! term_exists( (int) $args['parent'] ) ) {
return new WP_Error( 'missing_parent', __( 'Parent term does not exist.' ) );
}
$args['name'] = $term;
$args['taxonomy'] = $taxonomy;
// Coerce null description to strings, to avoid database errors.
$args['description'] = (string) $args['description'];
$args = sanitize_term( $args, $taxonomy, 'db' );
// expected_slashed ($name)
$name = wp_unslash( $args['name'] );
$description = wp_unslash( $args['description'] );
$parent = (int) $args['parent'];
// Sanitization could clean the name to an empty string that must be checked again.
if ( '' === $name ) {
return new WP_Error( 'invalid_term_name', __( 'Invalid term name.' ) );
}
$slug_provided = ! empty( $args['slug'] );
if ( ! $slug_provided ) {
$slug = sanitize_title( $name );
} else {
$slug = $args['slug'];
}
$term_group = 0;
if ( $args['alias_of'] ) {
$alias = get_term_by( 'slug', $args['alias_of'], $taxonomy );
if ( ! empty( $alias->term_group ) ) {
// The alias we want is already in a group, so let's use that one.
$term_group = $alias->term_group;
} elseif ( ! empty( $alias->term_id ) ) {
/*
* The alias is not in a group, so we create a new one
* and add the alias to it.
*/
$term_group = $wpdb->get_var( "SELECT MAX(term_group) FROM $wpdb->terms" ) + 1;
wp_update_term(
$alias->term_id,
$taxonomy,
array(
'term_group' => $term_group,
)
);
}
}
/*
* Prevent the creation of terms with duplicate names at the same level of a taxonomy hierarchy,
* unless a unique slug has been explicitly provided.
*/
$name_matches = get_terms(
array(
'taxonomy' => $taxonomy,
'name' => $name,
'hide_empty' => false,
'parent' => $args['parent'],
'update_term_meta_cache' => false,
)
);
/*
* The `name` match in `get_terms()` doesn't differentiate accented characters,
* so we do a stricter comparison here.
*/
$name_match = null;
if ( $name_matches ) {
foreach ( $name_matches as $_match ) {
if ( strtolower( $name ) === strtolower( $_match->name ) ) {
$name_match = $_match;
break;
}
}
}
if ( $name_match ) {
$slug_match = get_term_by( 'slug', $slug, $taxonomy );
if ( ! $slug_provided || $name_match->slug === $slug || $slug_match ) {
if ( is_taxonomy_hierarchical( $taxonomy ) ) {
$siblings = get_terms(
array(
'taxonomy' => $taxonomy,
'get' => 'all',
'parent' => $parent,
'update_term_meta_cache' => false,
)
);
$existing_term = null;
$sibling_names = wp_list_pluck( $siblings, 'name' );
$sibling_slugs = wp_list_pluck( $siblings, 'slug' );
if ( ( ! $slug_provided || $name_match->slug === $slug ) && in_array( $name, $sibling_names, true ) ) {
$existing_term = $name_match;
} elseif ( $slug_match && in_array( $slug, $sibling_slugs, true ) ) {
$existing_term = $slug_match;
}
if ( $existing_term ) {
return new WP_Error( 'term_exists', __( 'A term with the name provided already exists with this parent.' ), $existing_term->term_id );
}
} else {
return new WP_Error( 'term_exists', __( 'A term with the name provided already exists in this taxonomy.' ), $name_match->term_id );
}
}
}
$slug = wp_unique_term_slug( $slug, (object) $args );
$data = compact( 'name', 'slug', 'term_group' );
/**
* Filters term data before it is inserted into the database.
*
* @since 4.7.0
*
* @param array $data Term data to be inserted.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_insert_term().
*/
$data = apply_filters( 'wp_insert_term_data', $data, $taxonomy, $args );
if ( false === $wpdb->insert( $wpdb->terms, $data ) ) {
return new WP_Error( 'db_insert_error', __( 'Could not insert term into the database.' ), $wpdb->last_error );
}
$term_id = (int) $wpdb->insert_id;
// Seems unreachable. However, is used in the case that a term name is provided, which sanitizes to an empty string.
if ( empty( $slug ) ) {
$slug = sanitize_title( $slug, $term_id );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'edit_terms', $term_id, $taxonomy );
$wpdb->update( $wpdb->terms, compact( 'slug' ), compact( 'term_id' ) );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'edited_terms', $term_id, $taxonomy );
}
$tt_id = $wpdb->get_var( $wpdb->prepare( "SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = %s AND t.term_id = %d", $taxonomy, $term_id ) );
if ( ! empty( $tt_id ) ) {
return array(
'term_id' => $term_id,
'term_taxonomy_id' => $tt_id,
);
}
if ( false === $wpdb->insert( $wpdb->term_taxonomy, compact( 'term_id', 'taxonomy', 'description', 'parent' ) + array( 'count' => 0 ) ) ) {
return new WP_Error( 'db_insert_error', __( 'Could not insert term taxonomy into the database.' ), $wpdb->last_error );
}
$tt_id = (int) $wpdb->insert_id;
/*
* Confidence check: if we just created a term with the same parent + taxonomy + slug but a higher term_id than
* an existing term, then we have unwittingly created a duplicate term. Delete the dupe, and use the term_id
* and term_taxonomy_id of the older term instead. Then return out of the function so that the "create" hooks
* are not fired.
*/
$duplicate_term = $wpdb->get_row( $wpdb->prepare( "SELECT t.term_id, t.slug, tt.term_taxonomy_id, tt.taxonomy FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON ( tt.term_id = t.term_id ) WHERE t.slug = %s AND tt.parent = %d AND tt.taxonomy = %s AND t.term_id < %d AND tt.term_taxonomy_id != %d", $slug, $parent, $taxonomy, $term_id, $tt_id ) );
/**
* Filters the duplicate term check that takes place during term creation.
*
* Term parent + taxonomy + slug combinations are meant to be unique, and wp_insert_term()
* performs a last-minute confirmation of this uniqueness before allowing a new term
* to be created. Plugins with different uniqueness requirements may use this filter
* to bypass or modify the duplicate-term check.
*
* @since 5.1.0
*
* @param object $duplicate_term Duplicate term row from terms table, if found.
* @param string $term Term being inserted.
* @param string $taxonomy Taxonomy name.
* @param array $args Arguments passed to wp_insert_term().
* @param int $tt_id term_taxonomy_id for the newly created term.
*/
$duplicate_term = apply_filters( 'wp_insert_term_duplicate_term_check', $duplicate_term, $term, $taxonomy, $args, $tt_id );
if ( $duplicate_term ) {
$wpdb->delete( $wpdb->terms, array( 'term_id' => $term_id ) );
$wpdb->delete( $wpdb->term_taxonomy, array( 'term_taxonomy_id' => $tt_id ) );
$term_id = (int) $duplicate_term->term_id;
$tt_id = (int) $duplicate_term->term_taxonomy_id;
clean_term_cache( $term_id, $taxonomy );
return array(
'term_id' => $term_id,
'term_taxonomy_id' => $tt_id,
);
}
/**
* Fires immediately after a new term is created, before the term cache is cleaned.
*
* The {@see 'create_$taxonomy'} hook is also available for targeting a specific
* taxonomy.
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_insert_term().
*/
do_action( 'create_term', $term_id, $tt_id, $taxonomy, $args );
/**
* Fires after a new term is created for a specific taxonomy.
*
* The dynamic portion of the hook name, `$taxonomy`, refers
* to the slug of the taxonomy the term was created for.
*
* Possible hook names include:
*
* - `create_category`
* - `create_post_tag`
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param array $args Arguments passed to wp_insert_term().
*/
do_action( "create_{$taxonomy}", $term_id, $tt_id, $args );
/**
* Filters the term ID after a new term is created.
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param array $args Arguments passed to wp_insert_term().
*/
$term_id = apply_filters( 'term_id_filter', $term_id, $tt_id, $args );
clean_term_cache( $term_id, $taxonomy );
/**
* Fires after a new term is created, and after the term cache has been cleaned.
*
* The {@see 'created_$taxonomy'} hook is also available for targeting a specific
* taxonomy.
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_insert_term().
*/
do_action( 'created_term', $term_id, $tt_id, $taxonomy, $args );
/**
* Fires after a new term in a specific taxonomy is created, and after the term
* cache has been cleaned.
*
* The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `created_category`
* - `created_post_tag`
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param array $args Arguments passed to wp_insert_term().
*/
do_action( "created_{$taxonomy}", $term_id, $tt_id, $args );
/**
* Fires after a term has been saved, and the term cache has been cleared.
*
* The {@see 'saved_$taxonomy'} hook is also available for targeting a specific
* taxonomy.
*
* @since 5.5.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param bool $update Whether this is an existing term being updated.
* @param array $args Arguments passed to wp_insert_term().
*/
do_action( 'saved_term', $term_id, $tt_id, $taxonomy, false, $args );
/**
* Fires after a term in a specific taxonomy has been saved, and the term
* cache has been cleared.
*
* The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `saved_category`
* - `saved_post_tag`
*
* @since 5.5.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param bool $update Whether this is an existing term being updated.
* @param array $args Arguments passed to wp_insert_term().
*/
do_action( "saved_{$taxonomy}", $term_id, $tt_id, false, $args );
return array(
'term_id' => $term_id,
'term_taxonomy_id' => $tt_id,
);
}
/**
* Creates term and taxonomy relationships.
*
* Relates an object (post, link, etc.) to a term and taxonomy type. Creates the
* term and taxonomy relationship if it doesn't already exist. Creates a term if
* it doesn't exist (using the slug).
*
* A relationship means that the term is grouped in or belongs to the taxonomy.
* A term has no meaning until it is given context by defining which taxonomy it
* exists under.
*
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $object_id The object to relate to.
* @param string|int|array $terms A single term slug, single term ID, or array of either term slugs or IDs.
* Will replace all existing related terms in this taxonomy. Passing an
* empty array will remove all related terms.
* @param string $taxonomy The context in which to relate the term to the object.
* @param bool $append Optional. If false will delete difference of terms. Default false.
* @return array|WP_Error Term taxonomy IDs of the affected terms or WP_Error on failure.
*/
function wp_set_object_terms( $object_id, $terms, $taxonomy, $append = false ) {
global $wpdb;
$object_id = (int) $object_id;
if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
if ( empty( $terms ) ) {
$terms = array();
} elseif ( ! is_array( $terms ) ) {
$terms = array( $terms );
}
if ( ! $append ) {
$old_tt_ids = wp_get_object_terms(
$object_id,
$taxonomy,
array(
'fields' => 'tt_ids',
'orderby' => 'none',
'update_term_meta_cache' => false,
)
);
} else {
$old_tt_ids = array();
}
$tt_ids = array();
$term_ids = array();
$new_tt_ids = array();
foreach ( (array) $terms as $term ) {
if ( '' === trim( $term ) ) {
continue;
}
$term_info = term_exists( $term, $taxonomy );
if ( ! $term_info ) {
// Skip if a non-existent term ID is passed.
if ( is_int( $term ) ) {
continue;
}
$term_info = wp_insert_term( $term, $taxonomy );
}
if ( is_wp_error( $term_info ) ) {
return $term_info;
}
$term_ids[] = $term_info['term_id'];
$tt_id = $term_info['term_taxonomy_id'];
$tt_ids[] = $tt_id;
if ( $wpdb->get_var( $wpdb->prepare( "SELECT term_taxonomy_id FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id = %d", $object_id, $tt_id ) ) ) {
continue;
}
/**
* Fires immediately before an object-term relationship is added.
*
* @since 2.9.0
* @since 4.7.0 Added the `$taxonomy` parameter.
*
* @param int $object_id Object ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
*/
do_action( 'add_term_relationship', $object_id, $tt_id, $taxonomy );
$wpdb->insert(
$wpdb->term_relationships,
array(
'object_id' => $object_id,
'term_taxonomy_id' => $tt_id,
)
);
/**
* Fires immediately after an object-term relationship is added.
*
* @since 2.9.0
* @since 4.7.0 Added the `$taxonomy` parameter.
*
* @param int $object_id Object ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
*/
do_action( 'added_term_relationship', $object_id, $tt_id, $taxonomy );
$new_tt_ids[] = $tt_id;
}
if ( $new_tt_ids ) {
wp_update_term_count( $new_tt_ids, $taxonomy );
}
if ( ! $append ) {
$delete_tt_ids = array_diff( $old_tt_ids, $tt_ids );
if ( $delete_tt_ids ) {
$in_delete_tt_ids = "'" . implode( "', '", $delete_tt_ids ) . "'";
$delete_term_ids = $wpdb->get_col( $wpdb->prepare( "SELECT tt.term_id FROM $wpdb->term_taxonomy AS tt WHERE tt.taxonomy = %s AND tt.term_taxonomy_id IN ($in_delete_tt_ids)", $taxonomy ) );
$delete_term_ids = array_map( 'intval', $delete_term_ids );
$remove = wp_remove_object_terms( $object_id, $delete_term_ids, $taxonomy );
if ( is_wp_error( $remove ) ) {
return $remove;
}
}
}
$t = get_taxonomy( $taxonomy );
if ( ! $append && isset( $t->sort ) && $t->sort ) {
$values = array();
$term_order = 0;
$final_tt_ids = wp_get_object_terms(
$object_id,
$taxonomy,
array(
'fields' => 'tt_ids',
'update_term_meta_cache' => false,
)
);
foreach ( $tt_ids as $tt_id ) {
if ( in_array( (int) $tt_id, $final_tt_ids, true ) ) {
$values[] = $wpdb->prepare( '(%d, %d, %d)', $object_id, $tt_id, ++$term_order );
}
}
if ( $values ) {
if ( false === $wpdb->query( "INSERT INTO $wpdb->term_relationships (object_id, term_taxonomy_id, term_order) VALUES " . implode( ',', $values ) . ' ON DUPLICATE KEY UPDATE term_order = VALUES(term_order)' ) ) {
return new WP_Error( 'db_insert_error', __( 'Could not insert term relationship into the database.' ), $wpdb->last_error );
}
}
}
wp_cache_delete( $object_id, $taxonomy . '_relationships' );
wp_cache_set_terms_last_changed();
/**
* Fires after an object's terms have been set.
*
* @since 2.8.0
*
* @param int $object_id Object ID.
* @param array $terms An array of object term IDs or slugs.
* @param array $tt_ids An array of term taxonomy IDs.
* @param string $taxonomy Taxonomy slug.
* @param bool $append Whether to append new terms to the old terms.
* @param array $old_tt_ids Old array of term taxonomy IDs.
*/
do_action( 'set_object_terms', $object_id, $terms, $tt_ids, $taxonomy, $append, $old_tt_ids );
return $tt_ids;
}
/**
* Adds term(s) associated with a given object.
*
* @since 3.6.0
*
* @param int $object_id The ID of the object to which the terms will be added.
* @param string|int|array $terms The slug(s) or ID(s) of the term(s) to add.
* @param array|string $taxonomy Taxonomy name.
* @return array|WP_Error Term taxonomy IDs of the affected terms.
*/
function wp_add_object_terms( $object_id, $terms, $taxonomy ) {
return wp_set_object_terms( $object_id, $terms, $taxonomy, true );
}
/**
* Removes term(s) associated with a given object.
*
* @since 3.6.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $object_id The ID of the object from which the terms will be removed.
* @param string|int|array $terms The slug(s) or ID(s) of the term(s) to remove.
* @param string $taxonomy Taxonomy name.
* @return bool|WP_Error True on success, false or WP_Error on failure.
*/
function wp_remove_object_terms( $object_id, $terms, $taxonomy ) {
global $wpdb;
$object_id = (int) $object_id;
if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
if ( ! is_array( $terms ) ) {
$terms = array( $terms );
}
$tt_ids = array();
foreach ( (array) $terms as $term ) {
if ( '' === trim( $term ) ) {
continue;
}
$term_info = term_exists( $term, $taxonomy );
if ( ! $term_info ) {
// Skip if a non-existent term ID is passed.
if ( is_int( $term ) ) {
continue;
}
}
if ( is_wp_error( $term_info ) ) {
return $term_info;
}
$tt_ids[] = $term_info['term_taxonomy_id'];
}
if ( $tt_ids ) {
$in_tt_ids = "'" . implode( "', '", $tt_ids ) . "'";
/**
* Fires immediately before an object-term relationship is deleted.
*
* @since 2.9.0
* @since 4.7.0 Added the `$taxonomy` parameter.
*
* @param int $object_id Object ID.
* @param array $tt_ids An array of term taxonomy IDs.
* @param string $taxonomy Taxonomy slug.
*/
do_action( 'delete_term_relationships', $object_id, $tt_ids, $taxonomy );
$deleted = $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id IN ($in_tt_ids)", $object_id ) );
wp_cache_delete( $object_id, $taxonomy . '_relationships' );
wp_cache_set_terms_last_changed();
/**
* Fires immediately after an object-term relationship is deleted.
*
* @since 2.9.0
* @since 4.7.0 Added the `$taxonomy` parameter.
*
* @param int $object_id Object ID.
* @param array $tt_ids An array of term taxonomy IDs.
* @param string $taxonomy Taxonomy slug.
*/
do_action( 'deleted_term_relationships', $object_id, $tt_ids, $taxonomy );
wp_update_term_count( $tt_ids, $taxonomy );
return (bool) $deleted;
}
return false;
}
/**
* Makes term slug unique, if it isn't already.
*
* The `$slug` has to be unique global to every taxonomy, meaning that one
* taxonomy term can't have a matching slug with another taxonomy term. Each
* slug has to be globally unique for every taxonomy.
*
* The way this works is that if the taxonomy that the term belongs to is
* hierarchical and has a parent, it will append that parent to the $slug.
*
* If that still doesn't return a unique slug, then it tries to append a number
* until it finds a number that is truly unique.
*
* The only purpose for `$term` is for appending a parent, if one exists.
*
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $slug The string that will be tried for a unique slug.
* @param object $term The term object that the `$slug` will belong to.
* @return string Will return a true unique slug.
*/
function wp_unique_term_slug( $slug, $term ) {
global $wpdb;
$needs_suffix = true;
$original_slug = $slug;
// As of 4.1, duplicate slugs are allowed as long as they're in different taxonomies.
if ( ! term_exists( $slug ) || get_option( 'db_version' ) >= 30133 && ! get_term_by( 'slug', $slug, $term->taxonomy ) ) {
$needs_suffix = false;
}
/*
* If the taxonomy supports hierarchy and the term has a parent, make the slug unique
* by incorporating parent slugs.
*/
$parent_suffix = '';
if ( $needs_suffix && is_taxonomy_hierarchical( $term->taxonomy ) && ! empty( $term->parent ) ) {
$the_parent = $term->parent;
while ( ! empty( $the_parent ) ) {
$parent_term = get_term( $the_parent, $term->taxonomy );
if ( is_wp_error( $parent_term ) || empty( $parent_term ) ) {
break;
}
$parent_suffix .= '-' . $parent_term->slug;
if ( ! term_exists( $slug . $parent_suffix ) ) {
break;
}
if ( empty( $parent_term->parent ) ) {
break;
}
$the_parent = $parent_term->parent;
}
}
// If we didn't get a unique slug, try appending a number to make it unique.
/**
* Filters whether the proposed unique term slug is bad.
*
* @since 4.3.0
*
* @param bool $needs_suffix Whether the slug needs to be made unique with a suffix.
* @param string $slug The slug.
* @param object $term Term object.
*/
if ( apply_filters( 'wp_unique_term_slug_is_bad_slug', $needs_suffix, $slug, $term ) ) {
if ( $parent_suffix ) {
$slug .= $parent_suffix;
}
if ( ! empty( $term->term_id ) ) {
$query = $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s AND term_id != %d", $slug, $term->term_id );
} else {
$query = $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s", $slug );
}
if ( $wpdb->get_var( $query ) ) { // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
$num = 2;
do {
$alt_slug = $slug . "-$num";
++$num;
$slug_check = $wpdb->get_var( $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s", $alt_slug ) );
} while ( $slug_check );
$slug = $alt_slug;
}
}
/**
* Filters the unique term slug.
*
* @since 4.3.0
*
* @param string $slug Unique term slug.
* @param object $term Term object.
* @param string $original_slug Slug originally passed to the function for testing.
*/
return apply_filters( 'wp_unique_term_slug', $slug, $term, $original_slug );
}
/**
* Updates term based on arguments provided.
*
* The `$args` will indiscriminately override all values with the same field name.
* Care must be taken to not override important information need to update or
* update will fail (or perhaps create a new term, neither would be acceptable).
*
* Defaults will set 'alias_of', 'description', 'parent', and 'slug' if not
* defined in `$args` already.
*
* 'alias_of' will create a term group, if it doesn't already exist, and
* update it for the `$term`.
*
* If the 'slug' argument in `$args` is missing, then the 'name' will be used.
* If you set 'slug' and it isn't unique, then a WP_Error is returned.
* If you don't pass any slug, then a unique one will be created.
*
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $term_id The ID of the term.
* @param string $taxonomy The taxonomy of the term.
* @param array $args {
* Optional. Array of arguments for updating a term.
*
* @type string $alias_of Slug of the term to make this term an alias of.
* Default empty string. Accepts a term slug.
* @type string $description The term description. Default empty string.
* @type int $parent The id of the parent term. Default 0.
* @type string $slug The term slug to use. Default empty string.
* }
* @return array|WP_Error An array containing the `term_id` and `term_taxonomy_id`,
* WP_Error otherwise.
*/
function wp_update_term( $term_id, $taxonomy, $args = array() ) {
global $wpdb;
if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
$term_id = (int) $term_id;
// First, get all of the original args.
$term = get_term( $term_id, $taxonomy );
if ( is_wp_error( $term ) ) {
return $term;
}
if ( ! $term ) {
return new WP_Error( 'invalid_term', __( 'Empty Term.' ) );
}
$term = (array) $term->data;
// Escape data pulled from DB.
$term = wp_slash( $term );
// Merge old and new args with new args overwriting old ones.
$args = array_merge( $term, $args );
$defaults = array(
'alias_of' => '',
'description' => '',
'parent' => 0,
'slug' => '',
);
$args = wp_parse_args( $args, $defaults );
$args = sanitize_term( $args, $taxonomy, 'db' );
$parsed_args = $args;
// expected_slashed ($name)
$name = wp_unslash( $args['name'] );
$description = wp_unslash( $args['description'] );
$parsed_args['name'] = $name;
$parsed_args['description'] = $description;
if ( '' === trim( $name ) ) {
return new WP_Error( 'empty_term_name', __( 'A name is required for this term.' ) );
}
if ( (int) $parsed_args['parent'] > 0 && ! term_exists( (int) $parsed_args['parent'] ) ) {
return new WP_Error( 'missing_parent', __( 'Parent term does not exist.' ) );
}
$empty_slug = false;
if ( empty( $args['slug'] ) ) {
$empty_slug = true;
$slug = sanitize_title( $name );
} else {
$slug = $args['slug'];
}
$parsed_args['slug'] = $slug;
$term_group = isset( $parsed_args['term_group'] ) ? $parsed_args['term_group'] : 0;
if ( $args['alias_of'] ) {
$alias = get_term_by( 'slug', $args['alias_of'], $taxonomy );
if ( ! empty( $alias->term_group ) ) {
// The alias we want is already in a group, so let's use that one.
$term_group = $alias->term_group;
} elseif ( ! empty( $alias->term_id ) ) {
/*
* The alias is not in a group, so we create a new one
* and add the alias to it.
*/
$term_group = $wpdb->get_var( "SELECT MAX(term_group) FROM $wpdb->terms" ) + 1;
wp_update_term(
$alias->term_id,
$taxonomy,
array(
'term_group' => $term_group,
)
);
}
$parsed_args['term_group'] = $term_group;
}
/**
* Filters the term parent.
*
* Hook to this filter to see if it will cause a hierarchy loop.
*
* @since 3.1.0
*
* @param int $parent_term ID of the parent term.
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy slug.
* @param array $parsed_args An array of potentially altered update arguments for the given term.
* @param array $args Arguments passed to wp_update_term().
*/
$parent = (int) apply_filters( 'wp_update_term_parent', $args['parent'], $term_id, $taxonomy, $parsed_args, $args );
// Check for duplicate slug.
$duplicate = get_term_by( 'slug', $slug, $taxonomy );
if ( $duplicate && $duplicate->term_id !== $term_id ) {
/*
* If an empty slug was passed or the parent changed, reset the slug to something unique.
* Otherwise, bail.
*/
if ( $empty_slug || ( $parent !== (int) $term['parent'] ) ) {
$slug = wp_unique_term_slug( $slug, (object) $args );
} else {
/* translators: %s: Taxonomy term slug. */
return new WP_Error( 'duplicate_term_slug', sprintf( __( 'The slug “%s” is already in use by another term.' ), $slug ) );
}
}
$tt_id = (int) $wpdb->get_var( $wpdb->prepare( "SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = %s AND t.term_id = %d", $taxonomy, $term_id ) );
// Check whether this is a shared term that needs splitting.
$_term_id = _split_shared_term( $term_id, $tt_id );
if ( ! is_wp_error( $_term_id ) ) {
$term_id = $_term_id;
}
/**
* Fires immediately before the given terms are edited.
*
* @since 2.9.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( 'edit_terms', $term_id, $taxonomy, $args );
$data = compact( 'name', 'slug', 'term_group' );
/**
* Filters term data before it is updated in the database.
*
* @since 4.7.0
*
* @param array $data Term data to be updated.
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
$data = apply_filters( 'wp_update_term_data', $data, $term_id, $taxonomy, $args );
$wpdb->update( $wpdb->terms, $data, compact( 'term_id' ) );
if ( empty( $slug ) ) {
$slug = sanitize_title( $name, $term_id );
$wpdb->update( $wpdb->terms, compact( 'slug' ), compact( 'term_id' ) );
}
/**
* Fires immediately after a term is updated in the database, but before its
* term-taxonomy relationship is updated.
*
* @since 2.9.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( 'edited_terms', $term_id, $taxonomy, $args );
/**
* Fires immediate before a term-taxonomy relationship is updated.
*
* @since 2.9.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( 'edit_term_taxonomy', $tt_id, $taxonomy, $args );
$wpdb->update( $wpdb->term_taxonomy, compact( 'term_id', 'taxonomy', 'description', 'parent' ), array( 'term_taxonomy_id' => $tt_id ) );
/**
* Fires immediately after a term-taxonomy relationship is updated.
*
* @since 2.9.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( 'edited_term_taxonomy', $tt_id, $taxonomy, $args );
/**
* Fires after a term has been updated, but before the term cache has been cleaned.
*
* The {@see 'edit_$taxonomy'} hook is also available for targeting a specific
* taxonomy.
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( 'edit_term', $term_id, $tt_id, $taxonomy, $args );
/**
* Fires after a term in a specific taxonomy has been updated, but before the term
* cache has been cleaned.
*
* The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `edit_category`
* - `edit_post_tag`
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( "edit_{$taxonomy}", $term_id, $tt_id, $args );
/** This filter is documented in wp-includes/taxonomy.php */
$term_id = apply_filters( 'term_id_filter', $term_id, $tt_id );
clean_term_cache( $term_id, $taxonomy );
/**
* Fires after a term has been updated, and the term cache has been cleaned.
*
* The {@see 'edited_$taxonomy'} hook is also available for targeting a specific
* taxonomy.
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( 'edited_term', $term_id, $tt_id, $taxonomy, $args );
/**
* Fires after a term for a specific taxonomy has been updated, and the term
* cache has been cleaned.
*
* The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `edited_category`
* - `edited_post_tag`
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( "edited_{$taxonomy}", $term_id, $tt_id, $args );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'saved_term', $term_id, $tt_id, $taxonomy, true, $args );
/** This action is documented in wp-includes/taxonomy.php */
do_action( "saved_{$taxonomy}", $term_id, $tt_id, true, $args );
return array(
'term_id' => $term_id,
'term_taxonomy_id' => $tt_id,
);
}
/**
* Enables or disables term counting.
*
* @since 2.5.0
*
* @param bool $defer Optional. Enable if true, disable if false.
* @return bool Whether term counting is enabled or disabled.
*/
function wp_defer_term_counting( $defer = null ) {
static $_defer = false;
if ( is_bool( $defer ) ) {
$_defer = $defer;
// Flush any deferred counts.
if ( ! $defer ) {
wp_update_term_count( null, null, true );
}
}
return $_defer;
}
/**
* Updates the amount of terms in taxonomy.
*
* If there is a taxonomy callback applied, then it will be called for updating
* the count.
*
* The default action is to count what the amount of terms have the relationship
* of term ID. Once that is done, then update the database.
*
* @since 2.3.0
*
* @param int|array $terms The term_taxonomy_id of the terms.
* @param string $taxonomy The context of the term.
* @param bool $do_deferred Whether to flush the deferred term counts too. Default false.
* @return bool If no terms will return false, and if successful will return true.
*/
function wp_update_term_count( $terms, $taxonomy, $do_deferred = false ) {
static $_deferred = array();
if ( $do_deferred ) {
foreach ( (array) array_keys( $_deferred ) as $tax ) {
wp_update_term_count_now( $_deferred[ $tax ], $tax );
unset( $_deferred[ $tax ] );
}
}
if ( empty( $terms ) ) {
return false;
}
if ( ! is_array( $terms ) ) {
$terms = array( $terms );
}
if ( wp_defer_term_counting() ) {
if ( ! isset( $_deferred[ $taxonomy ] ) ) {
$_deferred[ $taxonomy ] = array();
}
$_deferred[ $taxonomy ] = array_unique( array_merge( $_deferred[ $taxonomy ], $terms ) );
return true;
}
return wp_update_term_count_now( $terms, $taxonomy );
}
/**
* Performs term count update immediately.
*
* @since 2.5.0
*
* @param array $terms The term_taxonomy_id of terms to update.
* @param string $taxonomy The context of the term.
* @return true Always true when complete.
*/
function wp_update_term_count_now( $terms, $taxonomy ) {
$terms = array_map( 'intval', $terms );
$taxonomy = get_taxonomy( $taxonomy );
if ( ! empty( $taxonomy->update_count_callback ) ) {
call_user_func( $taxonomy->update_count_callback, $terms, $taxonomy );
} else {
$object_types = (array) $taxonomy->object_type;
foreach ( $object_types as &$object_type ) {
if ( str_starts_with( $object_type, 'attachment:' ) ) {
list( $object_type ) = explode( ':', $object_type );
}
}
if ( array_filter( $object_types, 'post_type_exists' ) == $object_types ) {
// Only post types are attached to this taxonomy.
_update_post_term_count( $terms, $taxonomy );
} else {
// Default count updater.
_update_generic_term_count( $terms, $taxonomy );
}
}
clean_term_cache( $terms, '', false );
return true;
}
//
// Cache.
//
/**
* Removes the taxonomy relationship to terms from the cache.
*
* Will remove the entire taxonomy relationship containing term `$object_id`. The
* term IDs have to exist within the taxonomy `$object_type` for the deletion to
* take place.
*
* @since 2.3.0
*
* @global bool $_wp_suspend_cache_invalidation
*
* @see get_object_taxonomies() for more on $object_type.
*
* @param int|array $object_ids Single or list of term object ID(s).
* @param array|string $object_type The taxonomy object type.
*/
function clean_object_term_cache( $object_ids, $object_type ) {
global $_wp_suspend_cache_invalidation;
if ( ! empty( $_wp_suspend_cache_invalidation ) ) {
return;
}
if ( ! is_array( $object_ids ) ) {
$object_ids = array( $object_ids );
}
$taxonomies = get_object_taxonomies( $object_type );
foreach ( $taxonomies as $taxonomy ) {
wp_cache_delete_multiple( $object_ids, "{$taxonomy}_relationships" );
}
wp_cache_set_terms_last_changed();
/**
* Fires after the object term cache has been cleaned.
*
* @since 2.5.0
*
* @param array $object_ids An array of object IDs.
* @param string $object_type Object type.
*/
do_action( 'clean_object_term_cache', $object_ids, $object_type );
}
/**
* Removes all of the term IDs from the cache.
*
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
* @global bool $_wp_suspend_cache_invalidation
*
* @param int|int[] $ids Single or array of term IDs.
* @param string $taxonomy Optional. Taxonomy slug. Can be empty, in which case the taxonomies of the passed
* term IDs will be used. Default empty.
* @param bool $clean_taxonomy Optional. Whether to clean taxonomy wide caches (true), or just individual
* term object caches (false). Default true.
*/
function clean_term_cache( $ids, $taxonomy = '', $clean_taxonomy = true ) {
global $wpdb, $_wp_suspend_cache_invalidation;
if ( ! empty( $_wp_suspend_cache_invalidation ) ) {
return;
}
if ( ! is_array( $ids ) ) {
$ids = array( $ids );
}
$taxonomies = array();
// If no taxonomy, assume tt_ids.
if ( empty( $taxonomy ) ) {
$tt_ids = array_map( 'intval', $ids );
$tt_ids = implode( ', ', $tt_ids );
$terms = $wpdb->get_results( "SELECT term_id, taxonomy FROM $wpdb->term_taxonomy WHERE term_taxonomy_id IN ($tt_ids)" );
$ids = array();
foreach ( (array) $terms as $term ) {
$taxonomies[] = $term->taxonomy;
$ids[] = $term->term_id;
}
wp_cache_delete_multiple( $ids, 'terms' );
$taxonomies = array_unique( $taxonomies );
} else {
wp_cache_delete_multiple( $ids, 'terms' );
$taxonomies = array( $taxonomy );
}
foreach ( $taxonomies as $taxonomy ) {
if ( $clean_taxonomy ) {
clean_taxonomy_cache( $taxonomy );
}
/**
* Fires once after each taxonomy's term cache has been cleaned.
*
* @since 2.5.0
* @since 4.5.0 Added the `$clean_taxonomy` parameter.
*
* @param array $ids An array of term IDs.
* @param string $taxonomy Taxonomy slug.
* @param bool $clean_taxonomy Whether or not to clean taxonomy-wide caches
*/
do_action( 'clean_term_cache', $ids, $taxonomy, $clean_taxonomy );
}
wp_cache_set_terms_last_changed();
}
/**
* Cleans the caches for a taxonomy.
*
* @since 4.9.0
*
* @param string $taxonomy Taxonomy slug.
*/
function clean_taxonomy_cache( $taxonomy ) {
wp_cache_delete( 'all_ids', $taxonomy );
wp_cache_delete( 'get', $taxonomy );
wp_cache_set_terms_last_changed();
// Regenerate cached hierarchy.
delete_option( "{$taxonomy}_children" );
_get_term_hierarchy( $taxonomy );
/**
* Fires after a taxonomy's caches have been cleaned.
*
* @since 4.9.0
*
* @param string $taxonomy Taxonomy slug.
*/
do_action( 'clean_taxonomy_cache', $taxonomy );
}
/**
* Retrieves the cached term objects for the given object ID.
*
* Upstream functions (like get_the_terms() and is_object_in_term()) are
* responsible for populating the object-term relationship cache. The current
* function only fetches relationship data that is already in the cache.
*
* @since 2.3.0
* @since 4.7.0 Returns a `WP_Error` object if there's an error with
* any of the matched terms.
*
* @param int $id Term object ID, for example a post, comment, or user ID.
* @param string $taxonomy Taxonomy name.
* @return bool|WP_Term[]|WP_Error Array of `WP_Term` objects, if cached.
* False if cache is empty for `$taxonomy` and `$id`.
* WP_Error if get_term() returns an error object for any term.
*/
function get_object_term_cache( $id, $taxonomy ) {
$_term_ids = wp_cache_get( $id, "{$taxonomy}_relationships" );
// We leave the priming of relationship caches to upstream functions.
if ( false === $_term_ids ) {
return false;
}
// Backward compatibility for if a plugin is putting objects into the cache, rather than IDs.
$term_ids = array();
foreach ( $_term_ids as $term_id ) {
if ( is_numeric( $term_id ) ) {
$term_ids[] = (int) $term_id;
} elseif ( isset( $term_id->term_id ) ) {
$term_ids[] = (int) $term_id->term_id;
}
}
// Fill the term objects.
_prime_term_caches( $term_ids );
$terms = array();
foreach ( $term_ids as $term_id ) {
$term = get_term( $term_id, $taxonomy );
if ( is_wp_error( $term ) ) {
return $term;
}
$terms[] = $term;
}
return $terms;
}
/**
* Updates the cache for the given term object ID(s).
*
* Note: Due to performance concerns, great care should be taken to only update
* term caches when necessary. Processing time can increase exponentially depending
* on both the number of passed term IDs and the number of taxonomies those terms
* belong to.
*
* Caches will only be updated for terms not already cached.
*
* @since 2.3.0
*
* @param string|int[] $object_ids Comma-separated list or array of term object IDs.
* @param string|string[] $object_type The taxonomy object type or array of the same.
* @return void|false Void on success or if the `$object_ids` parameter is empty,
* false if all of the terms in `$object_ids` are already cached.
*/
function update_object_term_cache( $object_ids, $object_type ) {
if ( empty( $object_ids ) ) {
return;
}
if ( ! is_array( $object_ids ) ) {
$object_ids = explode( ',', $object_ids );
}
$object_ids = array_map( 'intval', $object_ids );
$non_cached_ids = array();
$taxonomies = get_object_taxonomies( $object_type );
foreach ( $taxonomies as $taxonomy ) {
$cache_values = wp_cache_get_multiple( (array) $object_ids, "{$taxonomy}_relationships" );
foreach ( $cache_values as $id => $value ) {
if ( false === $value ) {
$non_cached_ids[] = $id;
}
}
}
if ( empty( $non_cached_ids ) ) {
return false;
}
$non_cached_ids = array_unique( $non_cached_ids );
$terms = wp_get_object_terms(
$non_cached_ids,
$taxonomies,
array(
'fields' => 'all_with_object_id',
'orderby' => 'name',
'update_term_meta_cache' => false,
)
);
$object_terms = array();
foreach ( (array) $terms as $term ) {
$object_terms[ $term->object_id ][ $term->taxonomy ][] = $term->term_id;
}
foreach ( $non_cached_ids as $id ) {
foreach ( $taxonomies as $taxonomy ) {
if ( ! isset( $object_terms[ $id ][ $taxonomy ] ) ) {
if ( ! isset( $object_terms[ $id ] ) ) {
$object_terms[ $id ] = array();
}
$object_terms[ $id ][ $taxonomy ] = array();
}
}
}
$cache_values = array();
foreach ( $object_terms as $id => $value ) {
foreach ( $value as $taxonomy => $terms ) {
$cache_values[ $taxonomy ][ $id ] = $terms;
}
}
foreach ( $cache_values as $taxonomy => $data ) {
wp_cache_add_multiple( $data, "{$taxonomy}_relationships" );
}
}
/**
* Updates terms in cache.
*
* @since 2.3.0
*
* @param WP_Term[] $terms Array of term objects to change.
* @param string $taxonomy Not used.
*/
function update_term_cache( $terms, $taxonomy = '' ) {
$data = array();
foreach ( (array) $terms as $term ) {
// Create a copy in case the array was passed by reference.
$_term = clone $term;
// Object ID should not be cached.
unset( $_term->object_id );
$data[ $term->term_id ] = $_term;
}
wp_cache_add_multiple( $data, 'terms' );
}
//
// Private.
//
/**
* Retrieves children of taxonomy as term IDs.
*
* @access private
* @since 2.3.0
*
* @param string $taxonomy Taxonomy name.
* @return array Empty if $taxonomy isn't hierarchical or returns children as term IDs.
*/
function _get_term_hierarchy( $taxonomy ) {
if ( ! is_taxonomy_hierarchical( $taxonomy ) ) {
return array();
}
$children = get_option( "{$taxonomy}_children" );
if ( is_array( $children ) ) {
return $children;
}
$children = array();
$terms = get_terms(
array(
'taxonomy' => $taxonomy,
'get' => 'all',
'orderby' => 'id',
'fields' => 'id=>parent',
'update_term_meta_cache' => false,
)
);
foreach ( $terms as $term_id => $parent ) {
if ( $parent > 0 ) {
$children[ $parent ][] = $term_id;
}
}
update_option( "{$taxonomy}_children", $children );
return $children;
}
/**
* Gets the subset of $terms that are descendants of $term_id.
*
* If `$terms` is an array of objects, then _get_term_children() returns an array of objects.
* If `$terms` is an array of IDs, then _get_term_children() returns an array of IDs.
*
* @access private
* @since 2.3.0
*
* @param int $term_id The ancestor term: all returned terms should be descendants of `$term_id`.
* @param array $terms The set of terms - either an array of term objects or term IDs - from which those that
* are descendants of $term_id will be chosen.
* @param string $taxonomy The taxonomy which determines the hierarchy of the terms.
* @param array $ancestors Optional. Term ancestors that have already been identified. Passed by reference, to keep
* track of found terms when recursing the hierarchy. The array of located ancestors is used
* to prevent infinite recursion loops. For performance, `term_ids` are used as array keys,
* with 1 as value. Default empty array.
* @return array|WP_Error The subset of $terms that are descendants of $term_id.
*/
function _get_term_children( $term_id, $terms, $taxonomy, &$ancestors = array() ) {
$empty_array = array();
if ( empty( $terms ) ) {
return $empty_array;
}
$term_id = (int) $term_id;
$term_list = array();
$has_children = _get_term_hierarchy( $taxonomy );
if ( $term_id && ! isset( $has_children[ $term_id ] ) ) {
return $empty_array;
}
// Include the term itself in the ancestors array, so we can properly detect when a loop has occurred.
if ( empty( $ancestors ) ) {
$ancestors[ $term_id ] = 1;
}
foreach ( (array) $terms as $term ) {
$use_id = false;
if ( ! is_object( $term ) ) {
$term = get_term( $term, $taxonomy );
if ( is_wp_error( $term ) ) {
return $term;
}
$use_id = true;
}
// Don't recurse if we've already identified the term as a child - this indicates a loop.
if ( isset( $ancestors[ $term->term_id ] ) ) {
continue;
}
if ( (int) $term->parent === $term_id ) {
if ( $use_id ) {
$term_list[] = $term->term_id;
} else {
$term_list[] = $term;
}
if ( ! isset( $has_children[ $term->term_id ] ) ) {
continue;
}
$ancestors[ $term->term_id ] = 1;
$children = _get_term_children( $term->term_id, $terms, $taxonomy, $ancestors );
if ( $children ) {
$term_list = array_merge( $term_list, $children );
}
}
}
return $term_list;
}
/**
* Adds count of children to parent count.
*
* Recalculates term counts by including items from child terms. Assumes all
* relevant children are already in the $terms argument.
*
* @access private
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param object[]|WP_Term[] $terms List of term objects (passed by reference).
* @param string $taxonomy Term context.
*/
function _pad_term_counts( &$terms, $taxonomy ) {
global $wpdb;
// This function only works for hierarchical taxonomies like post categories.
if ( ! is_taxonomy_hierarchical( $taxonomy ) ) {
return;
}
$term_hier = _get_term_hierarchy( $taxonomy );
if ( empty( $term_hier ) ) {
return;
}
$term_items = array();
$terms_by_id = array();
$term_ids = array();
foreach ( (array) $terms as $key => $term ) {
$terms_by_id[ $term->term_id ] = & $terms[ $key ];
$term_ids[ $term->term_taxonomy_id ] = $term->term_id;
}
// Get the object and term IDs and stick them in a lookup table.
$tax_obj = get_taxonomy( $taxonomy );
$object_types = esc_sql( $tax_obj->object_type );
$results = $wpdb->get_results( "SELECT object_id, term_taxonomy_id FROM $wpdb->term_relationships INNER JOIN $wpdb->posts ON object_id = ID WHERE term_taxonomy_id IN (" . implode( ',', array_keys( $term_ids ) ) . ") AND post_type IN ('" . implode( "', '", $object_types ) . "') AND post_status = 'publish'" );
foreach ( $results as $row ) {
$id = $term_ids[ $row->term_taxonomy_id ];
$term_items[ $id ][ $row->object_id ] = isset( $term_items[ $id ][ $row->object_id ] ) ? ++$term_items[ $id ][ $row->object_id ] : 1;
}
// Touch every ancestor's lookup row for each post in each term.
foreach ( $term_ids as $term_id ) {
$child = $term_id;
$ancestors = array();
while ( ! empty( $terms_by_id[ $child ] ) && $parent = $terms_by_id[ $child ]->parent ) {
$ancestors[] = $child;
if ( ! empty( $term_items[ $term_id ] ) ) {
foreach ( $term_items[ $term_id ] as $item_id => $touches ) {
$term_items[ $parent ][ $item_id ] = isset( $term_items[ $parent ][ $item_id ] ) ? ++$term_items[ $parent ][ $item_id ] : 1;
}
}
$child = $parent;
if ( in_array( $parent, $ancestors, true ) ) {
break;
}
}
}
// Transfer the touched cells.
foreach ( (array) $term_items as $id => $items ) {
if ( isset( $terms_by_id[ $id ] ) ) {
$terms_by_id[ $id ]->count = count( $items );
}
}
}
/**
* Adds any terms from the given IDs to the cache that do not already exist in cache.
*
* @since 4.6.0
* @since 6.1.0 This function is no longer marked as "private".
* @since 6.3.0 Use wp_lazyload_term_meta() for lazy-loading of term meta.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $term_ids Array of term IDs.
* @param bool $update_meta_cache Optional. Whether to update the meta cache. Default true.
*/
function _prime_term_caches( $term_ids, $update_meta_cache = true ) {
global $wpdb;
$non_cached_ids = _get_non_cached_ids( $term_ids, 'terms' );
if ( ! empty( $non_cached_ids ) ) {
$fresh_terms = $wpdb->get_results( sprintf( "SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE t.term_id IN (%s)", implode( ',', array_map( 'intval', $non_cached_ids ) ) ) );
update_term_cache( $fresh_terms );
}
if ( $update_meta_cache ) {
wp_lazyload_term_meta( $term_ids );
}
}
//
// Default callbacks.
//
/**
* Updates term count based on object types of the current taxonomy.
*
* Private function for the default callback for post_tag and category
* taxonomies.
*
* @access private
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int[] $terms List of term taxonomy IDs.
* @param WP_Taxonomy $taxonomy Current taxonomy object of terms.
*/
function _update_post_term_count( $terms, $taxonomy ) {
global $wpdb;
$object_types = (array) $taxonomy->object_type;
foreach ( $object_types as &$object_type ) {
list( $object_type ) = explode( ':', $object_type );
}
$object_types = array_unique( $object_types );
$check_attachments = array_search( 'attachment', $object_types, true );
if ( false !== $check_attachments ) {
unset( $object_types[ $check_attachments ] );
$check_attachments = true;
}
if ( $object_types ) {
$object_types = esc_sql( array_filter( $object_types, 'post_type_exists' ) );
}
$post_statuses = array( 'publish' );
/**
* Filters the post statuses for updating the term count.
*
* @since 5.7.0
*
* @param string[] $post_statuses List of post statuses to include in the count. Default is 'publish'.
* @param WP_Taxonomy $taxonomy Current taxonomy object.
*/
$post_statuses = esc_sql( apply_filters( 'update_post_term_count_statuses', $post_statuses, $taxonomy ) );
foreach ( (array) $terms as $term ) {
$count = 0;
// Attachments can be 'inherit' status, we need to base count off the parent's status if so.
if ( $check_attachments ) {
// phpcs:ignore WordPress.DB.PreparedSQLPlaceholders.QuotedDynamicPlaceholderGeneration
$count += (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_relationships, $wpdb->posts p1 WHERE p1.ID = $wpdb->term_relationships.object_id AND ( post_status IN ('" . implode( "', '", $post_statuses ) . "') OR ( post_status = 'inherit' AND post_parent > 0 AND ( SELECT post_status FROM $wpdb->posts WHERE ID = p1.post_parent ) IN ('" . implode( "', '", $post_statuses ) . "') ) ) AND post_type = 'attachment' AND term_taxonomy_id = %d", $term ) );
}
if ( $object_types ) {
// phpcs:ignore WordPress.DB.PreparedSQLPlaceholders.QuotedDynamicPlaceholderGeneration
$count += (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_relationships, $wpdb->posts WHERE $wpdb->posts.ID = $wpdb->term_relationships.object_id AND post_status IN ('" . implode( "', '", $post_statuses ) . "') AND post_type IN ('" . implode( "', '", $object_types ) . "') AND term_taxonomy_id = %d", $term ) );
}
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'edit_term_taxonomy', $term, $taxonomy->name );
$wpdb->update( $wpdb->term_taxonomy, compact( 'count' ), array( 'term_taxonomy_id' => $term ) );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'edited_term_taxonomy', $term, $taxonomy->name );
}
}
/**
* Updates term count based on number of objects.
*
* Default callback for the 'link_category' taxonomy.
*
* @since 3.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int[] $terms List of term taxonomy IDs.
* @param WP_Taxonomy $taxonomy Current taxonomy object of terms.
*/
function _update_generic_term_count( $terms, $taxonomy ) {
global $wpdb;
foreach ( (array) $terms as $term ) {
$count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d", $term ) );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'edit_term_taxonomy', $term, $taxonomy->name );
$wpdb->update( $wpdb->term_taxonomy, compact( 'count' ), array( 'term_taxonomy_id' => $term ) );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'edited_term_taxonomy', $term, $taxonomy->name );
}
}
/**
* Creates a new term for a term_taxonomy item that currently shares its term
* with another term_taxonomy.
*
* @ignore
* @since 4.2.0
* @since 4.3.0 Introduced `$record` parameter. Also, `$term_id` and
* `$term_taxonomy_id` can now accept objects.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int|object $term_id ID of the shared term, or the shared term object.
* @param int|object $term_taxonomy_id ID of the term_taxonomy item to receive a new term, or the term_taxonomy object
* (corresponding to a row from the term_taxonomy table).
* @param bool $record Whether to record data about the split term in the options table. The recording
* process has the potential to be resource-intensive, so during batch operations
* it can be beneficial to skip inline recording and do it just once, after the
* batch is processed. Only set this to `false` if you know what you are doing.
* Default: true.
* @return int|WP_Error When the current term does not need to be split (or cannot be split on the current
* database schema), `$term_id` is returned. When the term is successfully split, the
* new term_id is returned. A WP_Error is returned for miscellaneous errors.
*/
function _split_shared_term( $term_id, $term_taxonomy_id, $record = true ) {
global $wpdb;
if ( is_object( $term_id ) ) {
$shared_term = $term_id;
$term_id = (int) $shared_term->term_id;
}
if ( is_object( $term_taxonomy_id ) ) {
$term_taxonomy = $term_taxonomy_id;
$term_taxonomy_id = (int) $term_taxonomy->term_taxonomy_id;
}
// If there are no shared term_taxonomy rows, there's nothing to do here.
$shared_tt_count = (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_taxonomy tt WHERE tt.term_id = %d AND tt.term_taxonomy_id != %d", $term_id, $term_taxonomy_id ) );
if ( ! $shared_tt_count ) {
return $term_id;
}
/*
* Verify that the term_taxonomy_id passed to the function is actually associated with the term_id.
* If there's a mismatch, it may mean that the term is already split. Return the actual term_id from the db.
*/
$check_term_id = (int) $wpdb->get_var( $wpdb->prepare( "SELECT term_id FROM $wpdb->term_taxonomy WHERE term_taxonomy_id = %d", $term_taxonomy_id ) );
if ( $check_term_id !== $term_id ) {
return $check_term_id;
}
// Pull up data about the currently shared slug, which we'll use to populate the new one.
if ( empty( $shared_term ) ) {
$shared_term = $wpdb->get_row( $wpdb->prepare( "SELECT t.* FROM $wpdb->terms t WHERE t.term_id = %d", $term_id ) );
}
$new_term_data = array(
'name' => $shared_term->name,
'slug' => $shared_term->slug,
'term_group' => $shared_term->term_group,
);
if ( false === $wpdb->insert( $wpdb->terms, $new_term_data ) ) {
return new WP_Error( 'db_insert_error', __( 'Could not split shared term.' ), $wpdb->last_error );
}
$new_term_id = (int) $wpdb->insert_id;
// Update the existing term_taxonomy to point to the newly created term.
$wpdb->update(
$wpdb->term_taxonomy,
array( 'term_id' => $new_term_id ),
array( 'term_taxonomy_id' => $term_taxonomy_id )
);
// Reassign child terms to the new parent.
if ( empty( $term_taxonomy ) ) {
$term_taxonomy = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->term_taxonomy WHERE term_taxonomy_id = %d", $term_taxonomy_id ) );
}
$children_tt_ids = $wpdb->get_col( $wpdb->prepare( "SELECT term_taxonomy_id FROM $wpdb->term_taxonomy WHERE parent = %d AND taxonomy = %s", $term_id, $term_taxonomy->taxonomy ) );
if ( ! empty( $children_tt_ids ) ) {
foreach ( $children_tt_ids as $child_tt_id ) {
$wpdb->update(
$wpdb->term_taxonomy,
array( 'parent' => $new_term_id ),
array( 'term_taxonomy_id' => $child_tt_id )
);
clean_term_cache( (int) $child_tt_id, '', false );
}
} else {
// If the term has no children, we must force its taxonomy cache to be rebuilt separately.
clean_term_cache( $new_term_id, $term_taxonomy->taxonomy, false );
}
clean_term_cache( $term_id, $term_taxonomy->taxonomy, false );
/*
* Taxonomy cache clearing is delayed to avoid race conditions that may occur when
* regenerating the taxonomy's hierarchy tree.
*/
$taxonomies_to_clean = array( $term_taxonomy->taxonomy );
// Clean the cache for term taxonomies formerly shared with the current term.
$shared_term_taxonomies = $wpdb->get_col( $wpdb->prepare( "SELECT taxonomy FROM $wpdb->term_taxonomy WHERE term_id = %d", $term_id ) );
$taxonomies_to_clean = array_merge( $taxonomies_to_clean, $shared_term_taxonomies );
foreach ( $taxonomies_to_clean as $taxonomy_to_clean ) {
clean_taxonomy_cache( $taxonomy_to_clean );
}
// Keep a record of term_ids that have been split, keyed by old term_id. See wp_get_split_term().
if ( $record ) {
$split_term_data = get_option( '_split_terms', array() );
if ( ! isset( $split_term_data[ $term_id ] ) ) {
$split_term_data[ $term_id ] = array();
}
$split_term_data[ $term_id ][ $term_taxonomy->taxonomy ] = $new_term_id;
update_option( '_split_terms', $split_term_data );
}
// If we've just split the final shared term, set the "finished" flag.
$shared_terms_exist = $wpdb->get_results(
"SELECT tt.term_id, t.*, count(*) as term_tt_count FROM {$wpdb->term_taxonomy} tt
LEFT JOIN {$wpdb->terms} t ON t.term_id = tt.term_id
GROUP BY t.term_id
HAVING term_tt_count > 1
LIMIT 1"
);
if ( ! $shared_terms_exist ) {
update_option( 'finished_splitting_shared_terms', true );
}
/**
* Fires after a previously shared taxonomy term is split into two separate terms.
*
* @since 4.2.0
*
* @param int $term_id ID of the formerly shared term.
* @param int $new_term_id ID of the new term created for the $term_taxonomy_id.
* @param int $term_taxonomy_id ID for the term_taxonomy row affected by the split.
* @param string $taxonomy Taxonomy for the split term.
*/
do_action( 'split_shared_term', $term_id, $new_term_id, $term_taxonomy_id, $term_taxonomy->taxonomy );
return $new_term_id;
}
/**
* Splits a batch of shared taxonomy terms.
*
* @since 4.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
function _wp_batch_split_terms() {
global $wpdb;
$lock_name = 'term_split.lock';
// Try to lock.
$lock_result = $wpdb->query( $wpdb->prepare( "INSERT IGNORE INTO `$wpdb->options` ( `option_name`, `option_value`, `autoload` ) VALUES (%s, %s, 'no') /* LOCK */", $lock_name, time() ) );
if ( ! $lock_result ) {
$lock_result = get_option( $lock_name );
// Bail if we were unable to create a lock, or if the existing lock is still valid.
if ( ! $lock_result || ( $lock_result > ( time() - HOUR_IN_SECONDS ) ) ) {
wp_schedule_single_event( time() + ( 5 * MINUTE_IN_SECONDS ), 'wp_split_shared_term_batch' );
return;
}
}
// Update the lock, as by this point we've definitely got a lock, just need to fire the actions.
update_option( $lock_name, time() );
// Get a list of shared terms (those with more than one associated row in term_taxonomy).
$shared_terms = $wpdb->get_results(
"SELECT tt.term_id, t.*, count(*) as term_tt_count FROM {$wpdb->term_taxonomy} tt
LEFT JOIN {$wpdb->terms} t ON t.term_id = tt.term_id
GROUP BY t.term_id
HAVING term_tt_count > 1
LIMIT 10"
);
// No more terms, we're done here.
if ( ! $shared_terms ) {
update_option( 'finished_splitting_shared_terms', true );
delete_option( $lock_name );
return;
}
// Shared terms found? We'll need to run this script again.
wp_schedule_single_event( time() + ( 2 * MINUTE_IN_SECONDS ), 'wp_split_shared_term_batch' );
// Rekey shared term array for faster lookups.
$_shared_terms = array();
foreach ( $shared_terms as $shared_term ) {
$term_id = (int) $shared_term->term_id;
$_shared_terms[ $term_id ] = $shared_term;
}
$shared_terms = $_shared_terms;
// Get term taxonomy data for all shared terms.
$shared_term_ids = implode( ',', array_keys( $shared_terms ) );
$shared_tts = $wpdb->get_results( "SELECT * FROM {$wpdb->term_taxonomy} WHERE `term_id` IN ({$shared_term_ids})" );
// Split term data recording is slow, so we do it just once, outside the loop.
$split_term_data = get_option( '_split_terms', array() );
$skipped_first_term = array();
$taxonomies = array();
foreach ( $shared_tts as $shared_tt ) {
$term_id = (int) $shared_tt->term_id;
// Don't split the first tt belonging to a given term_id.
if ( ! isset( $skipped_first_term[ $term_id ] ) ) {
$skipped_first_term[ $term_id ] = 1;
continue;
}
if ( ! isset( $split_term_data[ $term_id ] ) ) {
$split_term_data[ $term_id ] = array();
}
// Keep track of taxonomies whose hierarchies need flushing.
if ( ! isset( $taxonomies[ $shared_tt->taxonomy ] ) ) {
$taxonomies[ $shared_tt->taxonomy ] = 1;
}
// Split the term.
$split_term_data[ $term_id ][ $shared_tt->taxonomy ] = _split_shared_term( $shared_terms[ $term_id ], $shared_tt, false );
}
// Rebuild the cached hierarchy for each affected taxonomy.
foreach ( array_keys( $taxonomies ) as $tax ) {
delete_option( "{$tax}_children" );
_get_term_hierarchy( $tax );
}
update_option( '_split_terms', $split_term_data );
delete_option( $lock_name );
}
/**
* In order to avoid the _wp_batch_split_terms() job being accidentally removed,
* checks that it's still scheduled while we haven't finished splitting terms.
*
* @ignore
* @since 4.3.0
*/
function _wp_check_for_scheduled_split_terms() {
if ( ! get_option( 'finished_splitting_shared_terms' ) && ! wp_next_scheduled( 'wp_split_shared_term_batch' ) ) {
wp_schedule_single_event( time() + MINUTE_IN_SECONDS, 'wp_split_shared_term_batch' );
}
}
/**
* Checks default categories when a term gets split to see if any of them need to be updated.
*
* @ignore
* @since 4.2.0
*
* @param int $term_id ID of the formerly shared term.
* @param int $new_term_id ID of the new term created for the $term_taxonomy_id.
* @param int $term_taxonomy_id ID for the term_taxonomy row affected by the split.
* @param string $taxonomy Taxonomy for the split term.
*/
function _wp_check_split_default_terms( $term_id, $new_term_id, $term_taxonomy_id, $taxonomy ) {
if ( 'category' !== $taxonomy ) {
return;
}
foreach ( array( 'default_category', 'default_link_category', 'default_email_category' ) as $option ) {
if ( (int) get_option( $option, -1 ) === $term_id ) {
update_option( $option, $new_term_id );
}
}
}
/**
* Checks menu items when a term gets split to see if any of them need to be updated.
*
* @ignore
* @since 4.2.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $term_id ID of the formerly shared term.
* @param int $new_term_id ID of the new term created for the $term_taxonomy_id.
* @param int $term_taxonomy_id ID for the term_taxonomy row affected by the split.
* @param string $taxonomy Taxonomy for the split term.
*/
function _wp_check_split_terms_in_menus( $term_id, $new_term_id, $term_taxonomy_id, $taxonomy ) {
global $wpdb;
$post_ids = $wpdb->get_col(
$wpdb->prepare(
"SELECT m1.post_id
FROM {$wpdb->postmeta} AS m1
INNER JOIN {$wpdb->postmeta} AS m2 ON ( m2.post_id = m1.post_id )
INNER JOIN {$wpdb->postmeta} AS m3 ON ( m3.post_id = m1.post_id )
WHERE ( m1.meta_key = '_menu_item_type' AND m1.meta_value = 'taxonomy' )
AND ( m2.meta_key = '_menu_item_object' AND m2.meta_value = %s )
AND ( m3.meta_key = '_menu_item_object_id' AND m3.meta_value = %d )",
$taxonomy,
$term_id
)
);
if ( $post_ids ) {
foreach ( $post_ids as $post_id ) {
update_post_meta( $post_id, '_menu_item_object_id', $new_term_id, $term_id );
}
}
}
/**
* If the term being split is a nav_menu, changes associations.
*
* @ignore
* @since 4.3.0
*
* @param int $term_id ID of the formerly shared term.
* @param int $new_term_id ID of the new term created for the $term_taxonomy_id.
* @param int $term_taxonomy_id ID for the term_taxonomy row affected by the split.
* @param string $taxonomy Taxonomy for the split term.
*/
function _wp_check_split_nav_menu_terms( $term_id, $new_term_id, $term_taxonomy_id, $taxonomy ) {
if ( 'nav_menu' !== $taxonomy ) {
return;
}
// Update menu locations.
$locations = get_nav_menu_locations();
foreach ( $locations as $location => $menu_id ) {
if ( $term_id === $menu_id ) {
$locations[ $location ] = $new_term_id;
}
}
set_theme_mod( 'nav_menu_locations', $locations );
}
/**
* Gets data about terms that previously shared a single term_id, but have since been split.
*
* @since 4.2.0
*
* @param int $old_term_id Term ID. This is the old, pre-split term ID.
* @return array Array of new term IDs, keyed by taxonomy.
*/
function wp_get_split_terms( $old_term_id ) {
$split_terms = get_option( '_split_terms', array() );
$terms = array();
if ( isset( $split_terms[ $old_term_id ] ) ) {
$terms = $split_terms[ $old_term_id ];
}
return $terms;
}
/**
* Gets the new term ID corresponding to a previously split term.
*
* @since 4.2.0
*
* @param int $old_term_id Term ID. This is the old, pre-split term ID.
* @param string $taxonomy Taxonomy that the term belongs to.
* @return int|false If a previously split term is found corresponding to the old term_id and taxonomy,
* the new term_id will be returned. If no previously split term is found matching
* the parameters, returns false.
*/
function wp_get_split_term( $old_term_id, $taxonomy ) {
$split_terms = wp_get_split_terms( $old_term_id );
$term_id = false;
if ( isset( $split_terms[ $taxonomy ] ) ) {
$term_id = (int) $split_terms[ $taxonomy ];
}
return $term_id;
}
/**
* Determines whether a term is shared between multiple taxonomies.
*
* Shared taxonomy terms began to be split in 4.3, but failed cron tasks or
* other delays in upgrade routines may cause shared terms to remain.
*
* @since 4.4.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $term_id Term ID.
* @return bool Returns false if a term is not shared between multiple taxonomies or
* if splitting shared taxonomy terms is finished.
*/
function wp_term_is_shared( $term_id ) {
global $wpdb;
if ( get_option( 'finished_splitting_shared_terms' ) ) {
return false;
}
$tt_count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_taxonomy WHERE term_id = %d", $term_id ) );
return $tt_count > 1;
}
/**
* Generates a permalink for a taxonomy term archive.
*
* @since 2.5.0
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*
* @param WP_Term|int|string $term The term object, ID, or slug whose link will be retrieved.
* @param string $taxonomy Optional. Taxonomy. Default empty.
* @return string|WP_Error URL of the taxonomy term archive on success, WP_Error if term does not exist.
*/
function get_term_link( $term, $taxonomy = '' ) {
global $wp_rewrite;
if ( ! is_object( $term ) ) {
if ( is_int( $term ) ) {
$term = get_term( $term, $taxonomy );
} else {
$term = get_term_by( 'slug', $term, $taxonomy );
}
}
if ( ! is_object( $term ) ) {
$term = new WP_Error( 'invalid_term', __( 'Empty Term.' ) );
}
if ( is_wp_error( $term ) ) {
return $term;
}
$taxonomy = $term->taxonomy;
$termlink = $wp_rewrite->get_extra_permastruct( $taxonomy );
/**
* Filters the permalink structure for a term before token replacement occurs.
*
* @since 4.9.0
*
* @param string $termlink The permalink structure for the term's taxonomy.
* @param WP_Term $term The term object.
*/
$termlink = apply_filters( 'pre_term_link', $termlink, $term );
$slug = $term->slug;
$t = get_taxonomy( $taxonomy );
if ( empty( $termlink ) ) {
if ( 'category' === $taxonomy ) {
$termlink = '?cat=' . $term->term_id;
} elseif ( $t->query_var ) {
$termlink = "?$t->query_var=$slug";
} else {
$termlink = "?taxonomy=$taxonomy&term=$slug";
}
$termlink = home_url( $termlink );
} else {
if ( ! empty( $t->rewrite['hierarchical'] ) ) {
$hierarchical_slugs = array();
$ancestors = get_ancestors( $term->term_id, $taxonomy, 'taxonomy' );
foreach ( (array) $ancestors as $ancestor ) {
$ancestor_term = get_term( $ancestor, $taxonomy );
$hierarchical_slugs[] = $ancestor_term->slug;
}
$hierarchical_slugs = array_reverse( $hierarchical_slugs );
$hierarchical_slugs[] = $slug;
$termlink = str_replace( "%$taxonomy%", implode( '/', $hierarchical_slugs ), $termlink );
} else {
$termlink = str_replace( "%$taxonomy%", $slug, $termlink );
}
$termlink = home_url( user_trailingslashit( $termlink, 'category' ) );
}
// Back compat filters.
if ( 'post_tag' === $taxonomy ) {
/**
* Filters the tag link.
*
* @since 2.3.0
* @since 2.5.0 Deprecated in favor of {@see 'term_link'} filter.
* @since 5.4.1 Restored (un-deprecated).
*
* @param string $termlink Tag link URL.
* @param int $term_id Term ID.
*/
$termlink = apply_filters( 'tag_link', $termlink, $term->term_id );
} elseif ( 'category' === $taxonomy ) {
/**
* Filters the category link.
*
* @since 1.5.0
* @since 2.5.0 Deprecated in favor of {@see 'term_link'} filter.
* @since 5.4.1 Restored (un-deprecated).
*
* @param string $termlink Category link URL.
* @param int $term_id Term ID.
*/
$termlink = apply_filters( 'category_link', $termlink, $term->term_id );
}
/**
* Filters the term link.
*
* @since 2.5.0
*
* @param string $termlink Term link URL.
* @param WP_Term $term Term object.
* @param string $taxonomy Taxonomy slug.
*/
return apply_filters( 'term_link', $termlink, $term, $taxonomy );
}
/**
* Displays the taxonomies of a post with available options.
*
* This function can be used within the loop to display the taxonomies for a
* post without specifying the Post ID. You can also use it outside the Loop to
* display the taxonomies for a specific post.
*
* @since 2.5.0
*
* @param array $args {
* Arguments about which post to use and how to format the output. Shares all of the arguments
* supported by get_the_taxonomies(), in addition to the following.
*
* @type int|WP_Post $post Post ID or object to get taxonomies of. Default current post.
* @type string $before Displays before the taxonomies. Default empty string.
* @type string $sep Separates each taxonomy. Default is a space.
* @type string $after Displays after the taxonomies. Default empty string.
* }
*/
function the_taxonomies( $args = array() ) {
$defaults = array(
'post' => 0,
'before' => '',
'sep' => ' ',
'after' => '',
);
$parsed_args = wp_parse_args( $args, $defaults );
echo $parsed_args['before'] . implode( $parsed_args['sep'], get_the_taxonomies( $parsed_args['post'], $parsed_args ) ) . $parsed_args['after'];
}
/**
* Retrieves all taxonomies associated with a post.
*
* This function can be used within the loop. It will also return an array of
* the taxonomies with links to the taxonomy and name.
*
* @since 2.5.0
*
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
* @param array $args {
* Optional. Arguments about how to format the list of taxonomies. Default empty array.
*
* @type string $template Template for displaying a taxonomy label and list of terms.
* Default is "Label: Terms."
* @type string $term_template Template for displaying a single term in the list. Default is the term name
* linked to its archive.
* }
* @return string[] List of taxonomies.
*/
function get_the_taxonomies( $post = 0, $args = array() ) {
$post = get_post( $post );
$args = wp_parse_args(
$args,
array(
/* translators: %s: Taxonomy label, %l: List of terms formatted as per $term_template. */
'template' => __( '%s: %l.' ),
'term_template' => '%2$s',
)
);
$taxonomies = array();
if ( ! $post ) {
return $taxonomies;
}
foreach ( get_object_taxonomies( $post ) as $taxonomy ) {
$t = (array) get_taxonomy( $taxonomy );
if ( empty( $t['label'] ) ) {
$t['label'] = $taxonomy;
}
if ( empty( $t['args'] ) ) {
$t['args'] = array();
}
if ( empty( $t['template'] ) ) {
$t['template'] = $args['template'];
}
if ( empty( $t['term_template'] ) ) {
$t['term_template'] = $args['term_template'];
}
$terms = get_object_term_cache( $post->ID, $taxonomy );
if ( false === $terms ) {
$terms = wp_get_object_terms( $post->ID, $taxonomy, $t['args'] );
}
$links = array();
foreach ( $terms as $term ) {
$links[] = wp_sprintf( $t['term_template'], esc_attr( get_term_link( $term ) ), $term->name );
}
if ( $links ) {
$taxonomies[ $taxonomy ] = wp_sprintf( $t['template'], $t['label'], $links, $terms );
}
}
return $taxonomies;
}
/**
* Retrieves all taxonomy names for the given post.
*
* @since 2.5.0
*
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
* @return string[] An array of all taxonomy names for the given post.
*/
function get_post_taxonomies( $post = 0 ) {
$post = get_post( $post );
return get_object_taxonomies( $post );
}
/**
* Determines if the given object is associated with any of the given terms.
*
* The given terms are checked against the object's terms' term_ids, names and slugs.
* Terms given as integers will only be checked against the object's terms' term_ids.
* If no terms are given, determines if object is associated with any terms in the given taxonomy.
*
* @since 2.7.0
*
* @param int $object_id ID of the object (post ID, link ID, ...).
* @param string $taxonomy Single taxonomy name.
* @param int|string|int[]|string[] $terms Optional. Term ID, name, slug, or array of such
* to check against. Default null.
* @return bool|WP_Error WP_Error on input error.
*/
function is_object_in_term( $object_id, $taxonomy, $terms = null ) {
$object_id = (int) $object_id;
if ( ! $object_id ) {
return new WP_Error( 'invalid_object', __( 'Invalid object ID.' ) );
}
$object_terms = get_object_term_cache( $object_id, $taxonomy );
if ( false === $object_terms ) {
$object_terms = wp_get_object_terms( $object_id, $taxonomy, array( 'update_term_meta_cache' => false ) );
if ( is_wp_error( $object_terms ) ) {
return $object_terms;
}
wp_cache_set( $object_id, wp_list_pluck( $object_terms, 'term_id' ), "{$taxonomy}_relationships" );
}
if ( is_wp_error( $object_terms ) ) {
return $object_terms;
}
if ( empty( $object_terms ) ) {
return false;
}
if ( empty( $terms ) ) {
return ( ! empty( $object_terms ) );
}
$terms = (array) $terms;
$ints = array_filter( $terms, 'is_int' );
if ( $ints ) {
$strs = array_diff( $terms, $ints );
} else {
$strs =& $terms;
}
foreach ( $object_terms as $object_term ) {
// If term is an int, check against term_ids only.
if ( $ints && in_array( $object_term->term_id, $ints, true ) ) {
return true;
}
if ( $strs ) {
// Only check numeric strings against term_id, to avoid false matches due to type juggling.
$numeric_strs = array_map( 'intval', array_filter( $strs, 'is_numeric' ) );
if ( in_array( $object_term->term_id, $numeric_strs, true ) ) {
return true;
}
if ( in_array( $object_term->name, $strs, true ) ) {
return true;
}
if ( in_array( $object_term->slug, $strs, true ) ) {
return true;
}
}
}
return false;
}
/**
* Determines if the given object type is associated with the given taxonomy.
*
* @since 3.0.0
*
* @param string $object_type Object type string.
* @param string $taxonomy Single taxonomy name.
* @return bool True if object is associated with the taxonomy, otherwise false.
*/
function is_object_in_taxonomy( $object_type, $taxonomy ) {
$taxonomies = get_object_taxonomies( $object_type );
if ( empty( $taxonomies ) ) {
return false;
}
return in_array( $taxonomy, $taxonomies, true );
}
/**
* Gets an array of ancestor IDs for a given object.
*
* @since 3.1.0
* @since 4.1.0 Introduced the `$resource_type` argument.
*
* @param int $object_id Optional. The ID of the object. Default 0.
* @param string $object_type Optional. The type of object for which we'll be retrieving
* ancestors. Accepts a post type or a taxonomy name. Default empty.
* @param string $resource_type Optional. Type of resource $object_type is. Accepts 'post_type'
* or 'taxonomy'. Default empty.
* @return int[] An array of IDs of ancestors from lowest to highest in the hierarchy.
*/
function get_ancestors( $object_id = 0, $object_type = '', $resource_type = '' ) {
$object_id = (int) $object_id;
$ancestors = array();
if ( empty( $object_id ) ) {
/** This filter is documented in wp-includes/taxonomy.php */
return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type );
}
if ( ! $resource_type ) {
if ( is_taxonomy_hierarchical( $object_type ) ) {
$resource_type = 'taxonomy';
} elseif ( post_type_exists( $object_type ) ) {
$resource_type = 'post_type';
}
}
if ( 'taxonomy' === $resource_type ) {
$term = get_term( $object_id, $object_type );
while ( ! is_wp_error( $term ) && ! empty( $term->parent ) && ! in_array( $term->parent, $ancestors, true ) ) {
$ancestors[] = (int) $term->parent;
$term = get_term( $term->parent, $object_type );
}
} elseif ( 'post_type' === $resource_type ) {
$ancestors = get_post_ancestors( $object_id );
}
/**
* Filters a given object's ancestors.
*
* @since 3.1.0
* @since 4.1.1 Introduced the `$resource_type` parameter.
*
* @param int[] $ancestors An array of IDs of object ancestors.
* @param int $object_id Object ID.
* @param string $object_type Type of object.
* @param string $resource_type Type of resource $object_type is.
*/
return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type );
}
/**
* Returns the term's parent's term ID.
*
* @since 3.1.0
*
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy name.
* @return int|false Parent term ID on success, false on failure.
*/
function wp_get_term_taxonomy_parent_id( $term_id, $taxonomy ) {
$term = get_term( $term_id, $taxonomy );
if ( ! $term || is_wp_error( $term ) ) {
return false;
}
return (int) $term->parent;
}
/**
* Checks the given subset of the term hierarchy for hierarchy loops.
* Prevents loops from forming and breaks those that it finds.
*
* Attached to the {@see 'wp_update_term_parent'} filter.
*
* @since 3.1.0
*
* @param int $parent_term `term_id` of the parent for the term we're checking.
* @param int $term_id The term we're checking.
* @param string $taxonomy The taxonomy of the term we're checking.
* @return int The new parent for the term.
*/
function wp_check_term_hierarchy_for_loops( $parent_term, $term_id, $taxonomy ) {
// Nothing fancy here - bail.
if ( ! $parent_term ) {
return 0;
}
// Can't be its own parent.
if ( $parent_term === $term_id ) {
return 0;
}
// Now look for larger loops.
$loop = wp_find_hierarchy_loop( 'wp_get_term_taxonomy_parent_id', $term_id, $parent_term, array( $taxonomy ) );
if ( ! $loop ) {
return $parent_term; // No loop.
}
// Setting $parent_term to the given value causes a loop.
if ( isset( $loop[ $term_id ] ) ) {
return 0;
}
// There's a loop, but it doesn't contain $term_id. Break the loop.
foreach ( array_keys( $loop ) as $loop_member ) {
wp_update_term( $loop_member, $taxonomy, array( 'parent' => 0 ) );
}
return $parent_term;
}
/**
* Determines whether a taxonomy is considered "viewable".
*
* @since 5.1.0
*
* @param string|WP_Taxonomy $taxonomy Taxonomy name or object.
* @return bool Whether the taxonomy should be considered viewable.
*/
function is_taxonomy_viewable( $taxonomy ) {
if ( is_scalar( $taxonomy ) ) {
$taxonomy = get_taxonomy( $taxonomy );
if ( ! $taxonomy ) {
return false;
}
}
return $taxonomy->publicly_queryable;
}
/**
* Determines whether a term is publicly viewable.
*
* A term is considered publicly viewable if its taxonomy is viewable.
*
* @since 6.1.0
*
* @param int|WP_Term $term Term ID or term object.
* @return bool Whether the term is publicly viewable.
*/
function is_term_publicly_viewable( $term ) {
$term = get_term( $term );
if ( ! $term ) {
return false;
}
return is_taxonomy_viewable( $term->taxonomy );
}
/**
* Sets the last changed time for the 'terms' cache group.
*
* @since 5.0.0
*/
function wp_cache_set_terms_last_changed() {
wp_cache_set_last_changed( 'terms' );
}
/**
* Aborts calls to term meta if it is not supported.
*
* @since 5.0.0
*
* @param mixed $check Skip-value for whether to proceed term meta function execution.
* @return mixed Original value of $check, or false if term meta is not supported.
*/
function wp_check_term_meta_support_prefilter( $check ) {
if ( get_option( 'db_version' ) < 34370 ) {
return false;
}
return $check;
}
URL.
*/
'redirection' => apply_filters( 'http_request_redirection_count', 5, $url ),
/**
* Filters the version of the HTTP protocol used in a request.
*
* @since 2.7.0
* @since 5.1.0 The `$url` parameter was added.
*
* @param string $version Version of HTTP used. Accepts '1.0' and '1.1'. Default '1.0'.
* @param string $url The request URL.
*/
'httpversion' => apply_filters( 'http_request_version', '1.0', $url ),
/**
* Filters the user agent value sent with an HTTP request.
*
* @since 2.7.0
* @since 5.1.0 The `$url` parameter was added.
*
* @param string $user_agent WordPress user agent string.
* @param string $url The request URL.
*/
'user-agent' => apply_filters( 'http_headers_useragent', 'WordPress/' . get_bloginfo( 'version' ) . '; ' . get_bloginfo( 'url' ), $url ),
/**
* Filters whether to pass URLs through wp_http_validate_url() in an HTTP request.
*
* @since 3.6.0
* @since 5.1.0 The `$url` parameter was added.
*
* @param bool $pass_url Whether to pass URLs through wp_http_validate_url(). Default false.
* @param string $url The request URL.
*/
'reject_unsafe_urls' => apply_filters( 'http_request_reject_unsafe_urls', false, $url ),
'blocking' => true,
'headers' => array(),
'cookies' => array(),
'body' => null,
'compress' => false,
'decompress' => true,
'sslverify' => true,
'sslcertificates' => ABSPATH . WPINC . '/certificates/ca-bundle.crt',
'stream' => false,
'filename' => null,
'limit_response_size' => null,
);
// Pre-parse for the HEAD checks.
$args = wp_parse_args( $args );
// By default, HEAD requests do not cause redirections.
if ( isset( $args['method'] ) && 'HEAD' === $args['method'] ) {
$defaults['redirection'] = 0;
}
$parsed_args = wp_parse_args( $args, $defaults );
/**
* Filters the arguments used in an HTTP request.
*
* @since 2.7.0
*
* @param array $parsed_args An array of HTTP request arguments.
* @param string $url The request URL.
*/
$parsed_args = apply_filters( 'http_request_args', $parsed_args, $url );
// The transports decrement this, store a copy of the original value for loop purposes.
if ( ! isset( $parsed_args['_redirection'] ) ) {
$parsed_args['_redirection'] = $parsed_args['redirection'];
}
/**
* Filters the preemptive return value of an HTTP request.
*
* Returning a non-false value from the filter will short-circuit the HTTP request and return
* early with that value. A filter should return one of:
*
* - An array containing 'headers', 'body', 'response', 'cookies', and 'filename' elements
* - A WP_Error instance
* - boolean false to avoid short-circuiting the response
*
* Returning any other value may result in unexpected behavior.
*
* @since 2.9.0
*
* @param false|array|WP_Error $response A preemptive return value of an HTTP request. Default false.
* @param array $parsed_args HTTP request arguments.
* @param string $url The request URL.
*/
$pre = apply_filters( 'pre_http_request', false, $parsed_args, $url );
if ( false !== $pre ) {
return $pre;
}
if ( function_exists( 'wp_kses_bad_protocol' ) ) {
if ( $parsed_args['reject_unsafe_urls'] ) {
$url = wp_http_validate_url( $url );
}
if ( $url ) {
$url = wp_kses_bad_protocol( $url, array( 'http', 'https', 'ssl' ) );
}
}
$parsed_url = parse_url( $url );
if ( empty( $url ) || empty( $parsed_url['scheme'] ) ) {
$response = new WP_Error( 'http_request_failed', __( 'A valid URL was not provided.' ) );
/** This action is documented in wp-includes/class-wp-http.php */
do_action( 'http_api_debug', $response, 'response', 'WpOrg\Requests\Requests', $parsed_args, $url );
return $response;
}
if ( $this->block_request( $url ) ) {
$response = new WP_Error( 'http_request_not_executed', __( 'User has blocked requests through HTTP.' ) );
/** This action is documented in wp-includes/class-wp-http.php */
do_action( 'http_api_debug', $response, 'response', 'WpOrg\Requests\Requests', $parsed_args, $url );
return $response;
}
// If we are streaming to a file but no filename was given drop it in the WP temp dir
// and pick its name using the basename of the $url.
if ( $parsed_args['stream'] ) {
if ( empty( $parsed_args['filename'] ) ) {
$parsed_args['filename'] = get_temp_dir() . basename( $url );
}
// Force some settings if we are streaming to a file and check for existence
// and perms of destination directory.
$parsed_args['blocking'] = true;
if ( ! wp_is_writable( dirname( $parsed_args['filename'] ) ) ) {
$response = new WP_Error( 'http_request_failed', __( 'Destination directory for file streaming does not exist or is not writable.' ) );
/** This action is documented in wp-includes/class-wp-http.php */
do_action( 'http_api_debug', $response, 'response', 'WpOrg\Requests\Requests', $parsed_args, $url );
return $response;
}
}
if ( is_null( $parsed_args['headers'] ) ) {
$parsed_args['headers'] = array();
}
// WP allows passing in headers as a string, weirdly.
if ( ! is_array( $parsed_args['headers'] ) ) {
$processed_headers = WP_Http::processHeaders( $parsed_args['headers'] );
$parsed_args['headers'] = $processed_headers['headers'];
}
// Setup arguments.
$headers = $parsed_args['headers'];
$data = $parsed_args['body'];
$type = $parsed_args['method'];
$options = array(
'timeout' => $parsed_args['timeout'],
'useragent' => $parsed_args['user-agent'],
'blocking' => $parsed_args['blocking'],
'hooks' => new WP_HTTP_Requests_Hooks( $url, $parsed_args ),
);
// Ensure redirects follow browser behavior.
$options['hooks']->register( 'requests.before_redirect', array( static::class, 'browser_redirect_compatibility' ) );
// Validate redirected URLs.
if ( function_exists( 'wp_kses_bad_protocol' ) && $parsed_args['reject_unsafe_urls'] ) {
$options['hooks']->register( 'requests.before_redirect', array( static::class, 'validate_redirects' ) );
}
if ( $parsed_args['stream'] ) {
$options['filename'] = $parsed_args['filename'];
}
if ( empty( $parsed_args['redirection'] ) ) {
$options['follow_redirects'] = false;
} else {
$options['redirects'] = $parsed_args['redirection'];
}
// Use byte limit, if we can.
if ( isset( $parsed_args['limit_response_size'] ) ) {
$options['max_bytes'] = $parsed_args['limit_response_size'];
}
// If we've got cookies, use and convert them to WpOrg\Requests\Cookie.
if ( ! empty( $parsed_args['cookies'] ) ) {
$options['cookies'] = WP_Http::normalize_cookies( $parsed_args['cookies'] );
}
// SSL certificate handling.
if ( ! $parsed_args['sslverify'] ) {
$options['verify'] = false;
$options['verifyname'] = false;
} else {
$options['verify'] = $parsed_args['sslcertificates'];
}
// All non-GET/HEAD requests should put the arguments in the form body.
if ( 'HEAD' !== $type && 'GET' !== $type ) {
$options['data_format'] = 'body';
}
/**
* Filters whether SSL should be verified for non-local requests.
*
* @since 2.8.0
* @since 5.1.0 The `$url` parameter was added.
*
* @param bool|string $ssl_verify Boolean to control whether to verify the SSL connection
* or path to an SSL certificate.
* @param string $url The request URL.
*/
$options['verify'] = apply_filters( 'https_ssl_verify', $options['verify'], $url );
// Check for proxies.
$proxy = new WP_HTTP_Proxy();
if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
$options['proxy'] = new WpOrg\Requests\Proxy\Http( $proxy->host() . ':' . $proxy->port() );
if ( $proxy->use_authentication() ) {
$options['proxy']->use_authentication = true;
$options['proxy']->user = $proxy->username();
$options['proxy']->pass = $proxy->password();
}
}
// Avoid issues where mbstring.func_overload is enabled.
mbstring_binary_safe_encoding();
try {
$requests_response = WpOrg\Requests\Requests::request( $url, $headers, $data, $type, $options );
// Convert the response into an array.
$http_response = new WP_HTTP_Requests_Response( $requests_response, $parsed_args['filename'] );
$response = $http_response->to_array();
// Add the original object to the array.
$response['http_response'] = $http_response;
} catch ( WpOrg\Requests\Exception $e ) {
$response = new WP_Error( 'http_request_failed', $e->getMessage() );
}
reset_mbstring_encoding();
/**
* Fires after an HTTP API response is received and before the response is returned.
*
* @since 2.8.0
*
* @param array|WP_Error $response HTTP response or WP_Error object.
* @param string $context Context under which the hook is fired.
* @param string $class HTTP transport used.
* @param array $parsed_args HTTP request arguments.
* @param string $url The request URL.
*/
do_action( 'http_api_debug', $response, 'response', 'WpOrg\Requests\Requests', $parsed_args, $url );
if ( is_wp_error( $response ) ) {
return $response;
}
if ( ! $parsed_args['blocking'] ) {
return array(
'headers' => array(),
'body' => '',
'response' => array(
'code' => false,
'message' => false,
),
'cookies' => array(),
'http_response' => null,
);
}
/**
* Filters a successful HTTP API response immediately before the response is returned.
*
* @since 2.9.0
*
* @param array $response HTTP response.
* @param array $parsed_args HTTP request arguments.
* @param string $url The request URL.
*/
return apply_filters( 'http_response', $response, $parsed_args, $url );
}
/**
* Normalizes cookies for using in Requests.
*
* @since 4.6.0
*
* @param array $cookies Array of cookies to send with the request.
* @return WpOrg\Requests\Cookie\Jar Cookie holder object.
*/
public static function normalize_cookies( $cookies ) {
$cookie_jar = new WpOrg\Requests\Cookie\Jar();
foreach ( $cookies as $name => $value ) {
if ( $value instanceof WP_Http_Cookie ) {
$attributes = array_filter(
$value->get_attributes(),
static function ( $attr ) {
return null !== $attr;
}
);
$cookie_jar[ $value->name ] = new WpOrg\Requests\Cookie( (string) $value->name, $value->value, $attributes, array( 'host-only' => $value->host_only ) );
} elseif ( is_scalar( $value ) ) {
$cookie_jar[ $name ] = new WpOrg\Requests\Cookie( (string) $name, (string) $value );
}
}
return $cookie_jar;
}
/**
* Match redirect behavior to browser handling.
*
* Changes 302 redirects from POST to GET to match browser handling. Per
* RFC 7231, user agents can deviate from the strict reading of the
* specification for compatibility purposes.
*
* @since 4.6.0
*
* @param string $location URL to redirect to.
* @param array $headers Headers for the redirect.
* @param string|array $data Body to send with the request.
* @param array $options Redirect request options.
* @param WpOrg\Requests\Response $original Response object.
*/
public static function browser_redirect_compatibility( $location, $headers, $data, &$options, $original ) {
// Browser compatibility.
if ( 302 === $original->status_code ) {
$options['type'] = WpOrg\Requests\Requests::GET;
}
}
/**
* Validate redirected URLs.
*
* @since 4.7.5
*
* @throws WpOrg\Requests\Exception On unsuccessful URL validation.
* @param string $location URL to redirect to.
*/
public static function validate_redirects( $location ) {
if ( ! wp_http_validate_url( $location ) ) {
throw new WpOrg\Requests\Exception( __( 'A valid URL was not provided.' ), 'wp_http.redirect_failed_validation' );
}
}
/**
* Tests which transports are capable of supporting the request.
*
* @since 3.2.0
* @deprecated 6.4.0 Use WpOrg\Requests\Requests::get_transport_class()
* @see WpOrg\Requests\Requests::get_transport_class()
*
* @param array $args Request arguments.
* @param string $url URL to request.
* @return string|false Class name for the first transport that claims to support the request.
* False if no transport claims to support the request.
*/
public function _get_first_available_transport( $args, $url = null ) {
$transports = array( 'curl', 'streams' );
/**
* Filters which HTTP transports are available and in what order.
*
* @since 3.7.0
* @deprecated 6.4.0 Use WpOrg\Requests\Requests::get_transport_class()
*
* @param string[] $transports Array of HTTP transports to check. Default array contains
* 'curl' and 'streams', in that order.
* @param array $args HTTP request arguments.
* @param string $url The URL to request.
*/
$request_order = apply_filters_deprecated( 'http_api_transports', array( $transports, $args, $url ), '6.4.0' );
// Loop over each transport on each HTTP request looking for one which will serve this request's needs.
foreach ( $request_order as $transport ) {
if ( in_array( $transport, $transports, true ) ) {
$transport = ucfirst( $transport );
}
$class = 'WP_Http_' . $transport;
// Check to see if this transport is a possibility, calls the transport statically.
if ( ! call_user_func( array( $class, 'test' ), $args, $url ) ) {
continue;
}
return $class;
}
return false;
}
/**
* Dispatches a HTTP request to a supporting transport.
*
* Tests each transport in order to find a transport which matches the request arguments.
* Also caches the transport instance to be used later.
*
* The order for requests is cURL, and then PHP Streams.
*
* @since 3.2.0
* @deprecated 5.1.0 Use WP_Http::request()
* @see WP_Http::request()
*
* @param string $url URL to request.
* @param array $args Request arguments.
* @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'.
* A WP_Error instance upon error.
*/
private function _dispatch_request( $url, $args ) {
static $transports = array();
$class = $this->_get_first_available_transport( $args, $url );
if ( ! $class ) {
return new WP_Error( 'http_failure', __( 'There are no HTTP transports available which can complete the requested request.' ) );
}
// Transport claims to support request, instantiate it and give it a whirl.
if ( empty( $transports[ $class ] ) ) {
$transports[ $class ] = new $class();
}
$response = $transports[ $class ]->request( $url, $args );
/** This action is documented in wp-includes/class-wp-http.php */
do_action( 'http_api_debug', $response, 'response', $class, $args, $url );
if ( is_wp_error( $response ) ) {
return $response;
}
/** This filter is documented in wp-includes/class-wp-http.php */
return apply_filters( 'http_response', $response, $args, $url );
}
/**
* Uses the POST HTTP method.
*
* Used for sending data that is expected to be in the body.
*
* @since 2.7.0
*
* @param string $url The request URL.
* @param string|array $args Optional. Override the defaults.
* @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'.
* A WP_Error instance upon error. See WP_Http::response() for details.
*/
public function post( $url, $args = array() ) {
$defaults = array( 'method' => 'POST' );
$parsed_args = wp_parse_args( $args, $defaults );
return $this->request( $url, $parsed_args );
}
/**
* Uses the GET HTTP method.
*
* Used for sending data that is expected to be in the body.
*
* @since 2.7.0
*
* @param string $url The request URL.
* @param string|array $args Optional. Override the defaults.
* @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'.
* A WP_Error instance upon error. See WP_Http::response() for details.
*/
public function get( $url, $args = array() ) {
$defaults = array( 'method' => 'GET' );
$parsed_args = wp_parse_args( $args, $defaults );
return $this->request( $url, $parsed_args );
}
/**
* Uses the HEAD HTTP method.
*
* Used for sending data that is expected to be in the body.
*
* @since 2.7.0
*
* @param string $url The request URL.
* @param string|array $args Optional. Override the defaults.
* @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'.
* A WP_Error instance upon error. See WP_Http::response() for details.
*/
public function head( $url, $args = array() ) {
$defaults = array( 'method' => 'HEAD' );
$parsed_args = wp_parse_args( $args, $defaults );
return $this->request( $url, $parsed_args );
}
/**
* Parses the responses and splits the parts into headers and body.
*
* @since 2.7.0
*
* @param string $response The full response string.
* @return array {
* Array with response headers and body.
*
* @type string $headers HTTP response headers.
* @type string $body HTTP response body.
* }
*/
public static function processResponse( $response ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
$response = explode( "\r\n\r\n", $response, 2 );
return array(
'headers' => $response[0],
'body' => isset( $response[1] ) ? $response[1] : '',
);
}
/**
* Transforms header string into an array.
*
* @since 2.7.0
*
* @param string|array $headers The original headers. If a string is passed, it will be converted
* to an array. If an array is passed, then it is assumed to be
* raw header data with numeric keys with the headers as the values.
* No headers must be passed that were already processed.
* @param string $url Optional. The URL that was requested. Default empty.
* @return array {
* Processed string headers. If duplicate headers are encountered,
* then a numbered array is returned as the value of that header-key.
*
* @type array $response {
* @type int $code The response status code. Default 0.
* @type string $message The response message. Default empty.
* }
* @type array $newheaders The processed header data as a multidimensional array.
* @type WP_Http_Cookie[] $cookies If the original headers contain the 'Set-Cookie' key,
* an array containing `WP_Http_Cookie` objects is returned.
* }
*/
public static function processHeaders( $headers, $url = '' ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
// Split headers, one per array element.
if ( is_string( $headers ) ) {
// Tolerate line terminator: CRLF = LF (RFC 2616 19.3).
$headers = str_replace( "\r\n", "\n", $headers );
/*
* Unfold folded header fields. LWS = [CRLF] 1*( SP | HT ) ,
* (RFC 2616 2.2).
*/
$headers = preg_replace( '/\n[ \t]/', ' ', $headers );
// Create the headers array.
$headers = explode( "\n", $headers );
}
$response = array(
'code' => 0,
'message' => '',
);
/*
* If a redirection has taken place, The headers for each page request may have been passed.
* In this case, determine the final HTTP header and parse from there.
*/
for ( $i = count( $headers ) - 1; $i >= 0; $i-- ) {
if ( ! empty( $headers[ $i ] ) && ! str_contains( $headers[ $i ], ':' ) ) {
$headers = array_splice( $headers, $i );
break;
}
}
$cookies = array();
$newheaders = array();
foreach ( (array) $headers as $tempheader ) {
if ( empty( $tempheader ) ) {
continue;
}
if ( ! str_contains( $tempheader, ':' ) ) {
$stack = explode( ' ', $tempheader, 3 );
$stack[] = '';
list( , $response['code'], $response['message']) = $stack;
continue;
}
list($key, $value) = explode( ':', $tempheader, 2 );
$key = strtolower( $key );
$value = trim( $value );
if ( isset( $newheaders[ $key ] ) ) {
if ( ! is_array( $newheaders[ $key ] ) ) {
$newheaders[ $key ] = array( $newheaders[ $key ] );
}
$newheaders[ $key ][] = $value;
} else {
$newheaders[ $key ] = $value;
}
if ( 'set-cookie' === $key ) {
$cookies[] = new WP_Http_Cookie( $value, $url );
}
}
// Cast the Response Code to an int.
$response['code'] = (int) $response['code'];
return array(
'response' => $response,
'headers' => $newheaders,
'cookies' => $cookies,
);
}
/**
* Takes the arguments for a ::request() and checks for the cookie array.
*
* If it's found, then it upgrades any basic name => value pairs to WP_Http_Cookie instances,
* which are each parsed into strings and added to the Cookie: header (within the arguments array).
* Edits the array by reference.
*
* @since 2.8.0
*
* @param array $r Full array of args passed into ::request()
*/
public static function buildCookieHeader( &$r ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
if ( ! empty( $r['cookies'] ) ) {
// Upgrade any name => value cookie pairs to WP_HTTP_Cookie instances.
foreach ( $r['cookies'] as $name => $value ) {
if ( ! is_object( $value ) ) {
$r['cookies'][ $name ] = new WP_Http_Cookie(
array(
'name' => $name,
'value' => $value,
)
);
}
}
$cookies_header = '';
foreach ( (array) $r['cookies'] as $cookie ) {
$cookies_header .= $cookie->getHeaderValue() . '; ';
}
$cookies_header = substr( $cookies_header, 0, -2 );
$r['headers']['cookie'] = $cookies_header;
}
}
/**
* Decodes chunk transfer-encoding, based off the HTTP 1.1 specification.
*
* Based off the HTTP http_encoding_dechunk function.
*
* @link https://tools.ietf.org/html/rfc2616#section-19.4.6 Process for chunked decoding.
*
* @since 2.7.0
*
* @param string $body Body content.
* @return string Chunked decoded body on success or raw body on failure.
*/
public static function chunkTransferDecode( $body ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid
// The body is not chunked encoded or is malformed.
if ( ! preg_match( '/^([0-9a-f]+)[^\r\n]*\r\n/i', trim( $body ) ) ) {
return $body;
}
$parsed_body = '';
// We'll be altering $body, so need a backup in case of error.
$body_original = $body;
while ( true ) {
$has_chunk = (bool) preg_match( '/^([0-9a-f]+)[^\r\n]*\r\n/i', $body, $match );
if ( ! $has_chunk || empty( $match[1] ) ) {
return $body_original;
}
$length = hexdec( $match[1] );
$chunk_length = strlen( $match[0] );
// Parse out the chunk of data.
$parsed_body .= substr( $body, $chunk_length, $length );
// Remove the chunk from the raw data.
$body = substr( $body, $length + $chunk_length );
// End of the document.
if ( '0' === trim( $body ) ) {
return $parsed_body;
}
}
}
/**
* Determines whether an HTTP API request to the given URL should be blocked.
*
* Those who are behind a proxy and want to prevent access to certain hosts may do so. This will
* prevent plugins from working and core functionality, if you don't include `api.wordpress.org`.
*
* You block external URL requests by defining `WP_HTTP_BLOCK_EXTERNAL` as true in your `wp-config.php`
* file and this will only allow localhost and your site to make requests. The constant
* `WP_ACCESSIBLE_HOSTS` will allow additional hosts to go through for requests. The format of the
* `WP_ACCESSIBLE_HOSTS` constant is a comma separated list of hostnames to allow, wildcard domains
* are supported, eg `*.wordpress.org` will allow for all subdomains of `wordpress.org` to be contacted.
*
* @since 2.8.0
*
* @link https://core.trac.wordpress.org/ticket/8927 Allow preventing external requests.
* @link https://core.trac.wordpress.org/ticket/14636 Allow wildcard domains in WP_ACCESSIBLE_HOSTS
*
* @param string $uri URI of url.
* @return bool True to block, false to allow.
*/
public function block_request( $uri ) {
// We don't need to block requests, because nothing is blocked.
if ( ! defined( 'WP_HTTP_BLOCK_EXTERNAL' ) || ! WP_HTTP_BLOCK_EXTERNAL ) {
return false;
}
$check = parse_url( $uri );
if ( ! $check ) {
return true;
}
$home = parse_url( get_option( 'siteurl' ) );
// Don't block requests back to ourselves by default.
if ( 'localhost' === $check['host'] || ( isset( $home['host'] ) && $home['host'] === $check['host'] ) ) {
/**
* Filters whether to block local HTTP API requests.
*
* A local request is one to `localhost` or to the same host as the site itself.
*
* @since 2.8.0
*
* @param bool $block Whether to block local requests. Default false.
*/
return apply_filters( 'block_local_requests', false );
}
if ( ! defined( 'WP_ACCESSIBLE_HOSTS' ) ) {
return true;
}
static $accessible_hosts = null;
static $wildcard_regex = array();
if ( null === $accessible_hosts ) {
$accessible_hosts = preg_split( '|,\s*|', WP_ACCESSIBLE_HOSTS );
if ( str_contains( WP_ACCESSIBLE_HOSTS, '*' ) ) {
$wildcard_regex = array();
foreach ( $accessible_hosts as $host ) {
$wildcard_regex[] = str_replace( '\*', '.+', preg_quote( $host, '/' ) );
}
$wildcard_regex = '/^(' . implode( '|', $wildcard_regex ) . ')$/i';
}
}
if ( ! empty( $wildcard_regex ) ) {
return ! preg_match( $wildcard_regex, $check['host'] );
} else {
return ! in_array( $check['host'], $accessible_hosts, true ); // Inverse logic, if it's in the array, then don't block it.
}
}
/**
* Used as a wrapper for PHP's parse_url() function that handles edgecases in < PHP 5.4.7.
*
* @deprecated 4.4.0 Use wp_parse_url()
* @see wp_parse_url()
*
* @param string $url The URL to parse.
* @return bool|array False on failure; Array of URL components on success;
* See parse_url()'s return values.
*/
protected static function parse_url( $url ) {
_deprecated_function( __METHOD__, '4.4.0', 'wp_parse_url()' );
return wp_parse_url( $url );
}
/**
* Converts a relative URL to an absolute URL relative to a given URL.
*
* If an Absolute URL is provided, no processing of that URL is done.
*
* @since 3.4.0
*
* @param string $maybe_relative_path The URL which might be relative.
* @param string $url The URL which $maybe_relative_path is relative to.
* @return string An Absolute URL, in a failure condition where the URL cannot be parsed, the relative URL will be returned.
*/
public static function make_absolute_url( $maybe_relative_path, $url ) {
if ( empty( $url ) ) {
return $maybe_relative_path;
}
$url_parts = wp_parse_url( $url );
if ( ! $url_parts ) {
return $maybe_relative_path;
}
$relative_url_parts = wp_parse_url( $maybe_relative_path );
if ( ! $relative_url_parts ) {
return $maybe_relative_path;
}
// Check for a scheme on the 'relative' URL.
if ( ! empty( $relative_url_parts['scheme'] ) ) {
return $maybe_relative_path;
}
$absolute_path = $url_parts['scheme'] . '://';
// Schemeless URLs will make it this far, so we check for a host in the relative URL
// and convert it to a protocol-URL.
if ( isset( $relative_url_parts['host'] ) ) {
$absolute_path .= $relative_url_parts['host'];
if ( isset( $relative_url_parts['port'] ) ) {
$absolute_path .= ':' . $relative_url_parts['port'];
}
} else {
$absolute_path .= $url_parts['host'];
if ( isset( $url_parts['port'] ) ) {
$absolute_path .= ':' . $url_parts['port'];
}
}
// Start off with the absolute URL path.
$path = ! empty( $url_parts['path'] ) ? $url_parts['path'] : '/';
// If it's a root-relative path, then great.
if ( ! empty( $relative_url_parts['path'] ) && '/' === $relative_url_parts['path'][0] ) {
$path = $relative_url_parts['path'];
// Else it's a relative path.
} elseif ( ! empty( $relative_url_parts['path'] ) ) {
// Strip off any file components from the absolute path.
$path = substr( $path, 0, strrpos( $path, '/' ) + 1 );
// Build the new path.
$path .= $relative_url_parts['path'];
// Strip all /path/../ out of the path.
while ( strpos( $path, '../' ) > 1 ) {
$path = preg_replace( '![^/]+/\.\./!', '', $path );
}
// Strip any final leading ../ from the path.
$path = preg_replace( '!^/(\.\./)+!', '', $path );
}
// Add the query string.
if ( ! empty( $relative_url_parts['query'] ) ) {
$path .= '?' . $relative_url_parts['query'];
}
// Add the fragment.
if ( ! empty( $relative_url_parts['fragment'] ) ) {
$path .= '#' . $relative_url_parts['fragment'];
}
return $absolute_path . '/' . ltrim( $path, '/' );
}
/**
* Handles an HTTP redirect and follows it if appropriate.
*
* @since 3.7.0
*
* @param string $url The URL which was requested.
* @param array $args The arguments which were used to make the request.
* @param array $response The response of the HTTP request.
* @return array|false|WP_Error An HTTP API response array if the redirect is successfully followed,
* false if no redirect is present, or a WP_Error object if there's an error.
*/
public static function handle_redirects( $url, $args, $response ) {
// If no redirects are present, or, redirects were not requested, perform no action.
if ( ! isset( $response['headers']['location'] ) || 0 === $args['_redirection'] ) {
return false;
}
// Only perform redirections on redirection http codes.
if ( $response['response']['code'] > 399 || $response['response']['code'] < 300 ) {
return false;
}
// Don't redirect if we've run out of redirects.
if ( $args['redirection']-- <= 0 ) {
return new WP_Error( 'http_request_failed', __( 'Too many redirects.' ) );
}
$redirect_location = $response['headers']['location'];
// If there were multiple Location headers, use the last header specified.
if ( is_array( $redirect_location ) ) {
$redirect_location = array_pop( $redirect_location );
}
$redirect_location = WP_Http::make_absolute_url( $redirect_location, $url );
// POST requests should not POST to a redirected location.
if ( 'POST' === $args['method'] ) {
if ( in_array( $response['response']['code'], array( 302, 303 ), true ) ) {
$args['method'] = 'GET';
}
}
// Include valid cookies in the redirect process.
if ( ! empty( $response['cookies'] ) ) {
foreach ( $response['cookies'] as $cookie ) {
if ( $cookie->test( $redirect_location ) ) {
$args['cookies'][] = $cookie;
}
}
}
return wp_remote_request( $redirect_location, $args );
}
/**
* Determines if a specified string represents an IP address or not.
*
* This function also detects the type of the IP address, returning either
* '4' or '6' to represent an IPv4 and IPv6 address respectively.
* This does not verify if the IP is a valid IP, only that it appears to be
* an IP address.
*
* @link http://home.deds.nl/~aeron/regex/ for IPv6 regex.
*
* @since 3.7.0
*
* @param string $maybe_ip A suspected IP address.
* @return int|false Upon success, '4' or '6' to represent an IPv4 or IPv6 address, false upon failure.
*/
public static function is_ip_address( $maybe_ip ) {
if ( preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/', $maybe_ip ) ) {
return 4;
}
if ( str_contains( $maybe_ip, ':' ) && preg_match( '/^(((?=.*(::))(?!.*\3.+\3))\3?|([\dA-F]{1,4}(\3|:\b|$)|\2))(?4){5}((?4){2}|(((2[0-4]|1\d|[1-9])?\d|25[0-5])\.?\b){4})$/i', trim( $maybe_ip, ' []' ) ) ) {
return 6;
}
return false;
}
}