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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 |
|---|---|
| 1505 | * @subpackage Post |
| 1506 | * @since 2.3 |
| 1507 | * |
| 1508 | * @param string $new_status {@internal Missing Description}} |
| 1509 | * @param string $old_status {@internal Missing Description}} |
| 1510 | * @param int $post {@internal Missing Description}} |
| 1511 | */ |
| 1512 | function wp_transition_post_status($new_status, $old_status, $post) { |
| 1513 | if ( $new_status != $old_status ) { |
| 1514 | do_action('transition_post_status', $new_status, $old_status, $post); |
| 1515 | do_action("${old_status}_to_$new_status", $post); |
| 1516 | } |
| 1517 | do_action("${new_status}_$post->post_type", $post->ID, $post); |
| 1518 | } |
| 1519 | |
| 1520 | // |
| 1521 | // Trackback and ping functions |
| 1522 | // |
| 1523 | |