Walker_Nav_Menu_Checklist::start_el( string $output, object $item, int $depth, array $args = array(), int $id )

Start the element output.

Description

See also

Parameters

$output

(string) (Required) Used to append additional content (passed by reference).

$item

(object) (Required) Menu item data object.

$depth

(int) (Required) Depth of menu item. Used for padding.

$args

(array) (Optional) Not used.

Default value: array()

$id

(int) (Required) Not used.

Source

File: wp-admin/includes/class-walker-nav-menu-checklist.php 

	public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
		global $_nav_menu_placeholder;

		$_nav_menu_placeholder = ( 0 > $_nav_menu_placeholder ) ? intval($_nav_menu_placeholder) - 1 : -1;
		$possible_object_id = isset( $item->post_type ) && 'nav_menu_item' == $item->post_type ? $item->object_id : $_nav_menu_placeholder;
		$possible_db_id = ( ! empty( $item->ID ) ) && ( 0 < $possible_object_id ) ? (int) $item->ID : 0;

		$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';

		$output .= $indent . '<li>';
		$output .= '<label class="menu-item-title">';
		$output .= '<input type="checkbox" class="menu-item-checkbox';

		if ( ! empty( $item->front_or_home ) )
			$output .= ' add-to-top';

		$output .= '" name="menu-item[' . $possible_object_id . '][menu-item-object-id]" value="'. esc_attr( $item->object_id ) .'" /> ';

		if ( ! empty( $item->label ) ) {
			$title = $item->label;
		} elseif ( isset( $item->post_type ) ) {
			/** This filter is documented in wp-includes/post-template.php */
			$title = apply_filters( 'the_title', $item->post_title, $item->ID );
			if ( ! empty( $item->front_or_home ) && _x( 'Home', 'nav menu home label' ) !== $title )
				$title = sprintf( _x( 'Home: %s', 'nav menu front page title' ), $title );
		}

		$output .= isset( $title ) ? esc_html( $title ) : esc_html( $item->title );
 		$output .= '</label>';

		// Menu item hidden fields
		$output .= '<input type="hidden" class="menu-item-db-id" name="menu-item[' . $possible_object_id . '][menu-item-db-id]" value="' . $possible_db_id . '" />';
		$output .= '<input type="hidden" class="menu-item-object" name="menu-item[' . $possible_object_id . '][menu-item-object]" value="'. esc_attr( $item->object ) .'" />';
		$output .= '<input type="hidden" class="menu-item-parent-id" name="menu-item[' . $possible_object_id . '][menu-item-parent-id]" value="'. esc_attr( $item->menu_item_parent ) .'" />';
		$output .= '<input type="hidden" class="menu-item-type" name="menu-item[' . $possible_object_id . '][menu-item-type]" value="'. esc_attr( $item->type ) .'" />';
		$output .= '<input type="hidden" class="menu-item-title" name="menu-item[' . $possible_object_id . '][menu-item-title]" value="'. esc_attr( $item->title ) .'" />';
		$output .= '<input type="hidden" class="menu-item-url" name="menu-item[' . $possible_object_id . '][menu-item-url]" value="'. esc_attr( $item->url ) .'" />';
		$output .= '<input type="hidden" class="menu-item-target" name="menu-item[' . $possible_object_id . '][menu-item-target]" value="'. esc_attr( $item->target ) .'" />';
		$output .= '<input type="hidden" class="menu-item-attr_title" name="menu-item[' . $possible_object_id . '][menu-item-attr_title]" value="'. esc_attr( $item->attr_title ) .'" />';
		$output .= '<input type="hidden" class="menu-item-classes" name="menu-item[' . $possible_object_id . '][menu-item-classes]" value="'. esc_attr( implode( ' ', $item->classes ) ) .'" />';
		$output .= '<input type="hidden" class="menu-item-xfn" name="menu-item[' . $possible_object_id . '][menu-item-xfn]" value="'. esc_attr( $item->xfn ) .'" />';
	}

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Related

Uses

Uses
Uses Description
wp-includes/l10n.php: _x()

Retrieve translated string with gettext context.
wp-includes/plugin.php: apply_filters()

Call the functions added to a filter hook.
wp-includes/post-template.php: the_title

Filters the post title.
wp-includes/formatting.php: esc_attr()

Escaping for HTML attributes.
wp-includes/formatting.php: esc_html()

Escaping for HTML blocks.

Changelog

Changelog
Version Description
WP-3.0.0 Introduced.