first commit

wp-content/plugins/beapi-maintenance-mode/classes/singleton.php

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+<?php namespace BEAPI\Maintenance_Mode;
+
+trait Singleton {
+
+	/**
+	 * @var self
+	 */
+	protected static $instance;
+
+	/**
+	 * @return self
+	 */
+	final public static function get_instance() {
+		if ( is_null( self::$instance ) ) {
+			self::$instance = new static;
+		}
+
+		return self::$instance;
+	}
+
+	/**
+	 * Constructor protected from the outside
+	 */
+	final private function __construct() {
+		$this->init();
+	}
+
+	/**
+	 * Add init function by default
+	 * Implement this method in your child class
+	 * If you want to have actions send at construct
+	 */
+	protected function init() {}
+
+	/**
+	 * prevent the instance from being cloned
+	 *
+	 * @return void
+	 */
+	final private function __clone() {
+	}
+
+	/**
+	 * prevent from being unserialized
+	 *
+	 * @return void
+	 */
+	final private function __wakeup() {}
+}