Walker_Category::start_lvl() WordPress Method
The Walker_Category::start_lvl() method is used to start the category list for a given parent category. This method is called by the Walker_Category::walk() method when it starts walking the category tree.
Walker_Category::start_lvl( string $output, int $depth, array $args = array() ) #
Starts the list before the elements are added.
Description
See also
Parameters
- $output
(string)(Required)Used to append additional content. Passed by reference.
- $depth
(int)(Optional) Depth of category. Used for tab indentation. Default 0.
- $args
(array)(Optional) An array of arguments. Will only append content if style argument value is 'list'. See wp_list_categories().
Default value: array()
Source
File: wp-includes/class-walker-category.php
public function start_lvl( &$output, $depth = 0, $args = array() ) {
if ( 'list' !== $args['style'] ) {
return;
}
$indent = str_repeat( "\t", $depth );
$output .= "$indent<ul class='children'>\n";
}
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Changelog
| Version | Description |
|---|---|
| 2.1.0 | Introduced. |