Erster Stand des mvc-Frameworks

rendering/Singleton/SingletonAbstract.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * Created by CS medien- & kommunikationssysteme.
+ * @author Christian Steinle
+ * @date 02.08.2016
+ *
+ * @copyright CS medien- & kommunikationssysteme (http://www.steinle-computer.de)
+ */
+
+namespace Singleton;
+
+
+class SingletonAbstract
+{
+	/**
+	 * @var null|SingletonAbstract
+	 */
+	protected static $_instance = null;
+
+
+	/**
+	 * Protected wegen Singleton
+	 */
+	final protected function __construct()
+	{
+	}
+
+
+	/**
+	 * Protected wegen Singleton
+	 */
+	final protected function __clone()
+	{
+	}
+
+
+	/**
+	 * @return SingletonAbstract
+	 */
+	public static function getInstance()
+	{
+		if (null === self::$_instance)
+		{
+			self::$_instance = new self;
+		}
+		return self::$_instance;
+	}
+}