Starts the element output.

The $args parameter holds additional values that may be used with the child class methods. Also includes the element output.

$output string Required

Used to append additional content (passed by reference).

$data_object object Required

The data object.

$depth int Required

Depth of the item.

$args array Optional

An array of additional arguments.

Default: array()

$current_object_id int Optional

ID of the current item. Default 0.

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).

“Start Element”. Generally, this method is used to add the opening HTML tag for a single tree item (such as <li>, <span>, or <a>) to $output.

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

public function start_el( &$output, $data_object, $depth = 0, $args = array(), $current_object_id = 0 ) {}