Starts the list before the elements are added.

Description

The $args parameter holds additional values that may be used with the child class methods. This method is called at the start of the output list.

Parameters

$outputstringrequired

Used to append additional content (passed by reference).

$depthintrequired

Depth of the item.

$argsarrayoptional

An array of additional arguments.

Default:array()

More Information

This method is abstract and should be explicitly defined in the child class, as needed. Also note that $output is passed by reference, so any changes made to the variable within the following methods are automatically handled (no return, echo, or print needed).

This method “Start Level” is run when the walker reaches the start of a new “branch” in the tree structure. Generally, this method is used to add the opening tag of a container HTML element (such as <ol>, <ul>, or <div>) to $output.

Source

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

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