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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 |
|---|---|
| 1003 | $title = $tax->labels->name; |
| 1004 | } |
| 1005 | } |
| 1006 | $title = apply_filters('widget_title', $title, $instance, $this->id_base); |
| 1007 | |
| 1008 | echo $before_widget; |
| 1009 | if ( $title ) |
| 1010 | echo $before_title . $title . $after_title; |
| 1011 | echo '<div class="tagcloud">'; |
| 1012 | wp_tag_cloud( apply_filters('widget_tag_cloud_args', array('taxonomy' => $current_taxonomy) ) ); |
| 1013 | echo "</div>\n"; |
| 1014 | echo $after_widget; |
| 1015 | } |
| 1016 | |
| 1017 | function update( $new_instance, $old_instance ) { |
| 1018 | $instance['title'] = strip_tags(stripslashes($new_instance['title'])); |
| 1019 | $instance['taxonomy'] = stripslashes($new_instance['taxonomy']); |
| 1020 | return $instance; |
| 1021 | } |