* @license GPL-2.0+ * @link http://rahularyan.com * @copyright 2014 Rahul Aryan */ class AP_Email { /** * Instance of this class. */ protected static $instance = null; /** * Return an instance of this class. * @return object A single instance of this class. */ public static function get_instance() { // If the single instance hasn't been set, set it now. if (null == self::$instance) { self::$instance = new self; } return self::$instance; } /** * Initialize the plugin by setting localization and loading public scripts * and styles. */ public function __construct() { } }