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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 |
|---|---|
| 1437 | $this->rules = array_merge($this->extra_rules_top, $robots_rewrite, $deprecated_files, $registration_pages, $root_rewrite, $comments_rewrite, $search_rewrite, $author_rewrite, $date_rewrite, $post_rewrite, $page_rewrite, $this->extra_rules); |
| 1438 | |
| 1439 | /** |
| 1440 | * Fires after the rewrite rules are generated. |
| 1441 | * |
| 1442 | * @since 1.5.0 |
| 1443 | * |
| 1444 | * @param WP_Rewrite $this Current WP_Rewrite instance, passed by reference. |
| 1445 | */ |
| 1446 | do_action_ref_array( 'generate_rewrite_rules', array( &$this ) ); |
| 1447 | |
| 1448 | /** |
| 1449 | * Filter the full set of generated rewrite rules. |
| 1450 | * |
| 1451 | * @since 1.5.0 |
| 1452 | * |
| 1453 | * @param array $this->rules The compiled array of rewrite rules. |
| 1454 | */ |
| 1455 | $this->rules = apply_filters( 'rewrite_rules_array', $this->rules ); |