State pattern is maintainable

state pattern change readme.rst

Behavioral/State/StateOrder.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace DesignPatterns\Behavioral\State;
+
+abstract class StateOrder
+{
+    /**
+     * @var array
+     */
+    private $details;
+
+    /**
+     * @var StateOrder $state
+     */
+    protected static $state;
+
+    /**
+     * @return mixed
+     */
+    abstract protected function done();
+
+    protected function setStatus(string $status)
+    {
+        $this->details['status'] = $status;
+        $this->details['updatedTime'] = time();
+    }
+
+    protected function getStatus(): string
+    {
+        return $this->details['status'];
+    }
+}