WP_Widget_Meta::update() WordPress Method

The WordPress update method is used to update the settings for a particular widget. This is typically used when a user changes the settings for a widget from the WordPress admin panel. The update method takes two arguments: the first argument is an array of new settings for the widget, and the second argument is the old settings for the widget.

WP_Widget_Meta::update( array $new_instance, array $old_instance ) #

	public function update( $new_instance, $old_instance ) {
		$instance          = $old_instance;
		$instance['title'] = sanitize_text_field( $new_instance['title'] );

		return $instance;
	}