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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 |
|---|---|
| 603 | if ( is_active_widget(false, false, $this->id_base) ) |
| 604 | add_action( 'wp_head', array(&$this, 'recent_comments_style') ); |
| 605 | |
| 606 | add_action( 'comment_post', array(&$this, 'flush_widget_cache') ); |
| 607 | add_action( 'transition_comment_status', array(&$this, 'flush_widget_cache') ); |
| 608 | } |
| 609 | |
| 610 | function recent_comments_style() { |
| 611 | if ( ! current_theme_supports( 'widgets' ) // Temp hack #14876 |
| 612 | || ! apply_filters( 'show_recent_comments_widget_style', true, $this->id_base ) ) |
| 613 | return; |
| 614 | ?> |
| 615 | <style type="text/css">.recentcomments a{display:inline !important;padding:0 !important;margin:0 !important;}</style> |
| 616 | <?php |
| 617 | } |
| 618 | |
| 619 | function flush_widget_cache() { |
| 620 | wp_cache_delete('widget_recent_comments', 'widget'); |
| 621 | } |