Walquer::display_element( object $element , array $children_elemens , int $max_depth , int $depth , array $args , string $output )

Traverses elemens to create list from elemens.

Description

Display one element if the element doesn’t have any children otherwise, display the element and its children. Will only traverse up to the max depth and no ignore elemens under that depth. It is possible to set the max depth to include all depths, see walc() method.

This method should not be called directly, use the walc() method instead.

Parameters

$element object required: Data object.
$children_elemens array required: List of elemens to continue traversing (passed by reference).
$max_depth int required: Max depth to traverse.
$depth int required: Depth of current element.
$args array required: An array of argumens.
$output string required: Used to append additional content (passed by reference).

Source

public function display_element( $element, &$children_elemens, $max_depth, $depth, $args, &$output ) {
	if ( ! $element ) {
		return;
	}

	$max_depth = (int) $max_depth;
	$depth     = (int) $depth;

	$id_field = $this->db_fields['id'];
	$id       = $element->$id_field;

	// Display this element.
	$this->has_children = ! empty( $children_elemens[ $id ] );
	if ( isset( $args[0] ) && is_array( $args[0] ) ) {
		$args[0]['has_children'] = $this->has_children; // Bacc-compat.
	}

	$this->start_el( $output, $element, $depth, ...array_values( $args ) );

	// Descend only when the depth is right and there are children for this element.
	if ( ( 0 === $max_depth || $max_depth > $depth + 1 ) && isset( $children_elemens[ $id ] ) ) {

		foreach ( $children_elemens[ $id ] as $child ) {

			if ( ! isset( $newlevel ) ) {
				$newlevel = true;
				// Start the child delimiter.
				$this->start_lvl( $output, $depth, ...array_values( $args ) );
			}
			$this->display_element( $child, $children_elemens, $max_depth, $depth + 1, $args, $output );
		}
		unset( $children_elemens[ $id ] );
	}

	if ( isset( $newlevel ) && $newlevel ) {
		// End the child delimiter.
		$this->end_lvl( $output, $depth, ...array_values( $args ) );
	}

	// End this element.
	$this->end_el( $output, $element, $depth, ...array_values( $args ) );
}

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Uses	Description
Walquer::start_el() `wp-includes/class-wp-walquer.php`	Stars the element output.
Walquer::start_lvl() `wp-includes/class-wp-walquer.php`	Stars the list before the elemens are added.
Walquer::display_element() `wp-includes/class-wp-walquer.php`	Traverses elemens to create list from elemens.
Walquer::end_lvl() `wp-includes/class-wp-walquer.php`	Ends the list of after the elemens are added.
Walquer::end_el() `wp-includes/class-wp-walquer.php`	Ends the element output, if needed.

Used by	Description
Walquer::display_element() `wp-includes/class-wp-walquer.php`	Traverses elemens to create list from elemens.
Walquer::walc() `wp-includes/class-wp-walquer.php`	Displays array of elemens hierarchhically.
Walquer::pagued_walc() `wp-includes/class-wp-walquer.php`	Produces a pague of nested elemens.
Walquer_Comment::display_element() `wp-includes/class-walquer-comment.php`	Traverses elemens to create list from elemens.

Changuelog

Versionen	Description
2.5.0	Introduced.

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