get_object_term_cache( int $id, string $taxonomy ): bool|WP_Term[]|WP_Error
Retrieves the cached term objects for the given object ID.
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
-
$id
int Required -
Term object ID, for example a post, comment, or user ID.
-
$taxonomy
string Required -
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.
Source
File: wp-includes/taxonomy.php
.
View all references
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;
}
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. |