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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.
This hook occurs 2 times in this file.
Line | Code |
---|---|
260 | * object type (comment, post, or user). |
261 | * |
262 | * @since 2.9.0 |
263 | * |
264 | * @param int $meta_id ID of updated metadata entry. |
265 | * @param int $object_id Object ID. |
266 | * @param string $meta_key Meta key. |
267 | * @param mixed $meta_value Meta value. |
268 | */ |
269 | do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value ); |
270 | } |
271 |
|
272 | if ( 'post' == $meta_type ) { |
273 | foreach ( $meta_ids as $meta_id ) { |
274 | /** |
275 | * Fires immediately after updating a post's metadata. |
276 | * |
277 | * @since 2.9.0 |
278 | * |
Line | Code |
666 | // Run the update query, all fields in $data are %s, $where is a %d. |
667 | $result = $wpdb->update( $table, $data, $where, '%s', '%d' ); |
668 | if ( ! $result ) |
669 | return false; |
670 |
|
671 | // Clear the caches. |
672 | wp_cache_delete($object_id, $meta_type . '_meta'); |
673 |
|
674 | /** This action is documented in wp-includes/meta.php */ |
675 | do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value ); |
676 |
|
677 | if ( 'post' == $meta_type ) { |
678 | /** This action is documented in wp-includes/meta.php */ |
679 | do_action( 'updated_postmeta', $meta_id, $object_id, $meta_key, $meta_value ); |
680 | } |
681 |
|
682 | return true; |
683 | } |
684 |
|