Walker_Comment

17class Walker_Comment extends Walker {18 19	/**20	 * What the class handles.21	 *22	 * @since 2.7.023	 * @var string24	 *25	 * @see Walker::$tree_type26	 */27	public $tree_type = 'comment';28 29	/**30	 * Database fields to use.31	 *32	 * @since 2.7.033	 * @var string[]34	 *35	 * @see Walker::$db_fields36	 * @todo Decouple this37	 */38	public $db_fields = array(39		'parent' => 'comment_parent',40		'id'     => 'comment_ID',41	);42 43	/**44	 * Starts the list before the elements are added.45	 *46	 * @since 2.7.047	 *48	 * @see Walker::start_lvl()49	 * @global int $comment_depth50	 *51	 * @param string $output Used to append additional content (passed by reference).52	 * @param int    $depth  Optional. Depth of the current comment. Default 0.53	 * @param array  $args   Optional. Uses 'style' argument for type of HTML list. Default empty array.54	 */55	public function start_lvl( &$output, $depth = 0, $args = array() ) {56		$GLOBALS['comment_depth'] = $depth + 1;57 58		switch ( $args['style'] ) {59			case 'div':60				break;61			case 'ol':62				$output .= '<ol class="children">' . "\n";63				break;64			case 'ul':65			default:66				$output .= '<ul class="children">' . "\n";67				break;68		}69	}70 71	/**72	 * Ends the list of items after the elements are added.73	 *74	 * @since 2.7.075	 *76	 * @see Walker::end_lvl()77	 * @global int $comment_depth78	 *79	 * @param string $output Used to append additional content (passed by reference).80	 * @param int    $depth  Optional. Depth of the current comment. Default 0.81	 * @param array  $args   Optional. Will only append content if style argument value is 'ol' or 'ul'.82	 *                       Default empty array.83	 */84	public function end_lvl( &$output, $depth = 0, $args = array() ) {85		$GLOBALS['comment_depth'] = $depth + 1;86 87		switch ( $args['style'] ) {88			case 'div':89				break;90			case 'ol':91				$output .= "</ol><!-- .children -->\n";92				break;93			case 'ul':94			default:95				$output .= "</ul><!-- .children -->\n";96				break;