Outputs the beginning of the current level in the tree before elements are output.

Description

See also

• Walker::start_lvl()

Parameters

$outputstringrequired

Used to append additional content (passed by reference).

$depthintoptional

Depth of page. Used for padding. Default 0.

$argsarrayoptional

Arguments for outputting the next level.

Default:array()

Source

public function start_lvl( &$output, $depth = 0, $args = array() ) {
	if ( isset( $args['item_spacing'] ) && 'preserve' === $args['item_spacing'] ) {
		$t = "\t";
		$n = "\n";
	} else {
		$t = '';
		$n = '';
	}
	$indent  = str_repeat( $t, $depth );
	$output .= "{$n}{$indent}<ul class='children'>{$n}";
}

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