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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 129 | $tags = wp_get_post_tags($post_id); |
| 130 | |
| 131 | if ( !$tags ) |
| 132 | return false; |
| 133 | |
| 134 | foreach ( $tags as $tag ) |
| 135 | $tag_names[] = $tag->name; |
| 136 | $tags_to_edit = join( ', ', $tag_names ); |
| 137 | $tags_to_edit = attribute_escape( $tags_to_edit ); |
| 138 | $tags_to_edit = apply_filters( 'tags_to_edit', $tags_to_edit ); |
| 139 | return $tags_to_edit; |
| 140 | } |
| 141 | |
| 142 | function tag_exists($tag_name) { |
| 143 | return is_term($tag_name, 'post_tag'); |
| 144 | } |
| 145 | |
| 146 | function wp_create_tag($tag_name) { |
| 147 | if ( $id = tag_exists($tag_name) ) |