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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 |
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459 | // Old-style action. |
460 | if ( 'post' == $meta_type ) { |
461 | /** |
462 | * Fires immediately after deleting metadata for a post. |
463 | * |
464 | * @since 2.9.0 |
465 | * |
466 | * @param array $meta_ids An array of deleted post metadata entry IDs. |
467 | */ |
468 | do_action( 'deleted_postmeta', $meta_ids ); |
469 | } |
470 |
|
471 | return true; |
472 | } |
473 |
|
474 | /** |
475 | * Retrieve metadata for the specified object. |
476 | * |
477 | * @since 2.9.0 |