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Walker_Nav_Menu_Edit::start_lvl( string $output, int $depth, stdClass $args = null )

Starts the list before the elements are added.

$output

(string) (Required) Passed by reference.

$depth

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

$args

(stdClass) (Optional) Not used.

Default value: null

public function start_lvl( &$output, $depth = 0, $args = null ) {}

Version	Description
3.0.0	Introduced.