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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.
Line | Code |
---|---|
426 | // Old-style action. |
427 | if ( 'post' == $meta_type ) { |
428 | /** |
429 | * Fires immediately after deleting metadata for a post. |
430 | * |
431 | * @since 2.9.0 |
432 | * |
433 | * @param array $meta_ids An array of deleted post metadata entry IDs. |
434 | */ |
435 | do_action( 'deleted_postmeta', $meta_ids ); |
436 | } |
437 |
|
438 | return true; |
439 | } |
440 |
|
441 | /** |
442 | * Retrieve metadata for the specified object. |
443 | * |
444 | * @since 2.9.0 |