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Summery Summery
Retrieves the cached term objects for the given object ID.
Syntax Syntax
Description Description
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.
Parameters Parameters
- $id
-
(Required) Term object ID, for example a post, comment, or user ID.
- $taxonomy
-
(Required) Taxonomy name.
Return 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.
Source Source
File: wp-includes/taxonomy.php
/**
* Will remove 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();
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Changelog Changelog
| Version | Description |
|---|---|
| 4.7.0 | Returns a WP_Error object if there's an error with any of the matched terms. |
| 2.3.0 | Introduced. |
