start a restructure

Structural/DependencyInjection/ArrayConfig.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace DesignPatterns\DependencyInjection;
+
+/**
+ * class ArrayConfig
+ *
+ * uses array as data source
+ */
+class ArrayConfig extends AbstractConfig implements Parameters
+{
+    /**
+     * Get parameter
+     *
+     * @param string|int $key
+     * 
+     * @return mixed
+     */
+    public function get($key, $default = null) {
+        if (isset($this->storage[$key])) {
+            return $this->storage[$key];
+        }
+        return $default;
+    }
+
+    /**
+     * Set parameter
+     *
+     * @param string|int $key
+     * @param mixed      $value
+     */
+    public function set($key, $value)
+    {
+        $this->storage[$key] = $value;
+    }
+}