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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 |
---|---|
4491 |
|
4492 | $id = (int) $id; |
4493 |
|
4494 | wp_cache_delete($id, 'posts'); |
4495 | wp_cache_delete($id, 'post_meta'); |
4496 |
|
4497 | if ( $clean_terms ) |
4498 | clean_object_term_cache($id, 'attachment'); |
4499 |
|
4500 | do_action('clean_attachment_cache', $id); |
4501 | } |
4502 |
|
4503 | // |
4504 | // Hooks |
4505 | // |
4506 |
|
4507 | /** |
4508 | * Hook for managing future post transitions to published. |
4509 | * |