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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 |
|---|---|
| 782 | |
| 783 | // Pages |
| 784 | $page_rewrite = $this->page_rewrite_rules(); |
| 785 | $page_rewrite = apply_filters('page_rewrite_rules', $page_rewrite); |
| 786 | |
| 787 | // Put them together. |
| 788 | $this->rules = array_merge($this->extra_rules_top, $robots_rewrite, $default_feeds, $page_rewrite, $root_rewrite, $comments_rewrite, $search_rewrite, $category_rewrite, $tag_rewrite, $author_rewrite, $date_rewrite, $post_rewrite, $this->extra_rules); |
| 789 | |
| 790 | do_action_ref_array('generate_rewrite_rules', array(&$this)); |
| 791 | $this->rules = apply_filters('rewrite_rules_array', $this->rules); |
| 792 | |
| 793 | return $this->rules; |
| 794 | } |
| 795 | |
| 796 | function wp_rewrite_rules() { |
| 797 | $this->rules = get_option('rewrite_rules'); |
| 798 | if ( empty($this->rules) ) { |
| 799 | $this->matches = 'matches'; |
| 800 | $this->rewrite_rules(); |