Boilerplate Subscriber

Below is a boilerplate for a subscriber used in the event management system in WP Rocket.

<?php
namespace WP_Rocket\Subscriber;

use WP_Rocket\Event_Management\Subscriber_Interface;

/**
 * An event subscriber.
 *
 */
class Boilerplate_Subscriber implements Subscriber_Interface {
	/**
	 * Return an array of events that this subscriber wants to listen to.
	 *
	 * Each method callback is a public method in this subscriber class.
	 *
	 * @access public
	 *
	 * @return array
	 */
	public static function get_subscribed_events() {
		return [
			'hook_name'   => 'method_callback', // With no parameters for the hook
			'hook_name_2' => [ 'method_callback_2', 10 ], // With the priority parameter
			'hook_name_3' => [ 'method_callback_3', 10, 2 ], // With the priority & number of arguments parameters
			'hook_name_4' => [
			    [ 'method_callback_4' ], // Multiple callbacks can be hooked on the same event with a multidimensional array
			    [ 'method_callback_5' ],
			],
		];
	}
}