start a restructure

Structural/Registry/README.md

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+# Registry
+
+## Purpose
+
+To implement a central storage for objects often used throughout the application, is typically implemented using
+an abstract class with only static methods (or using the Singleton pattern)
+
+## Examples
+
+* Zend Framework: `Zend_Registry` holds the application's logger object, front controller etc.
+* Yii Framework: `CWebApplication` holds all the application components, such as `CWebUser`, `CUrlManager`, etc.

Structural/Registry/Registry.php

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+<?php
+
+namespace DesignPatterns\Registry;
+
+/**
+ * class Registry
+ */
+abstract class Registry
+{
+    const LOGGER = 'logger';
+
+    /**
+     * @var array
+     */
+    protected static $storedValues = array();
+
+    /**
+     * sets a value
+     *
+     * @param string $key
+     * @param mixed  $value
+     *
+     * @static
+     * @return void
+     */
+    public static function set($key, $value)
+    {
+        self::$storedValues[$key] = $value;
+    }
+
+    /**
+     * gets a value from the registry
+     *
+     * @param string $key
+     *
+     * @static
+     * @return mixed
+     */
+    public static function get($key)
+    {
+        return self::$storedValues[$key];
+    }
+
+    // typically there would be methods to check if a key has already been registered and so on ...
+}

Structural/Registry/index.php

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+<?php
+
+use DesignPatterns\Registry\Registry;
+
+// while bootstrapping the application
+Registry::set(Registry::LOGGER, new \StdClass());
+
+// throughout the application
+Registry::get(Registry::LOGGER)->log('foo');