PHP7 State

Behavioral/State/Order.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace DesignPatterns\Behavioral\State;
+
+interface Order
+{
+    /**
+     * @return mixed
+     */
+    public function shipOrder();
+
+    /**
+     * @return mixed
+     */
+    public function completeOrder();
+
+    public function getStatus(): string;
+}