WordPress at a glance
filter is not described

widget_form_callback filter-hook . WP 2.8.0

Filters the widget instance's settings before displaying the control form.

Returning false effectively short-circuits display of the control form.


add_filter( 'widget_form_callback', 'filter_function_name_5564', 10, 2 );
function filter_function_name_5564( $instance, $this ){
	// filter...

	return $instance;
The current widget instance's settings.
The current widget instance.

Where the hook is called

wp-includes/class-wp-widget.php 513
$instance = apply_filters( 'widget_form_callback', $instance, $this );

Where the hook is used (in WP core)

Использование не найдено.