wp-includes/meta.php:1794Returns the object subtype for a given object ID of a specific type.
$object_typestring$object_idintstringOne hook fires while get_object_subtype() runs, in this order:
Filters the object subtype identifier.
function get_object_subtype( $object_type, $object_id ) { $object_id = (int) $object_id; $object_subtype = ''; switch ( $object_type ) { case 'post': $post_type = get_post_type( $object_id ); if ( ! empty( $post_type ) ) { $object_subtype = $post_type; } break; case 'term': $term = get_term( $object_id ); if ( ! $term instanceof WP_Term ) { break; } $object_subtype = $term->taxonomy; break; case 'comment': $comment = get_comment( $object_id ); if ( ! $comment ) { break; } $object_subtype = 'comment'; break; case 'user': $user = get_user_by( 'id', $object_id ); if ( ! $user ) { break; } $object_subtype = 'user'; break; } /** * Filters the object subtype identifier. * * The dynamic portion of the hook name, `$object_type`, refers to the meta object type * (blog, post, comment, term, user, or any other type with an associated meta table). * * Possible hook names include: * * - `get_object_subtype_blog` * - `get_object_subtype_post` * - `get_object_subtype_comment` * - `get_object_subtype_term` * - `get_object_subtype_user` * * @since 4.9.8 * * @param string $object_subtype Object subtype or empty string to override. * @param int $object_id ID of the object to get the subtype for. */ return apply_filters( "get_object_subtype_{$object_type}", $object_subtype, $object_id );}Introduced in 4.9.8. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/meta.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.