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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 |
---|---|
431 | // Old-style action. |
432 | if ( 'post' == $meta_type ) { |
433 | /** |
434 | * Fires immediately after deleting metadata for a post. |
435 | * |
436 | * @since 2.9.0 |
437 | * |
438 | * @param array $meta_ids An array of deleted post metadata entry IDs. |
439 | */ |
440 | do_action( 'deleted_postmeta', $meta_ids ); |
441 | } |
442 |
|
443 | return true; |
444 | } |
445 |
|
446 | /** |
447 | * Retrieve metadata for the specified object. |
448 | * |
449 | * @since 2.9.0 |