Walker::start_lvl( string $output, int $depth, array $args = array() )

Starts the list before the elements are added.


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.

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$output string Required
Used to append additional content (passed by reference).
$depth int Required
Depth of the item.
$args array Optional
An array of additional arguments.

Default: array()

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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.

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File: wp-includes/class-wp-walker.php. View all references

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

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Version Description
2.1.0 Introduced.

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