WP hooks navigation: Home/browse • Actions index • Filters index
To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
324 | * |
325 | * @param null|bool $delete Whether to allow metadata deletion of the given type. |
326 | * @param int $object_id Object ID. |
327 | * @param string $meta_key Meta key. |
328 | * @param mixed $meta_value Meta value. Must be serializable if non-scalar. |
329 | * @param bool $delete_all Whether to delete the matching metadata entries |
330 | * for all objects, ignoring the specified $object_id. |
331 | * Default false. |
332 | */ |
333 | $check = apply_filters( "delete_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $delete_all ); |
334 | if ( null !== $check ) |
335 | return (bool) $check; |
336 |
|
337 | $_meta_value = $meta_value; |
338 | $meta_value = maybe_serialize( $meta_value ); |
339 |
|
340 | $query = $wpdb->prepare( "SELECT $id_column FROM $table WHERE meta_key = %s", $meta_key ); |
341 |
|
342 | if ( !$delete_all ) |