* @copyright 2012-2013 Romanenko Sergey / Awilum * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ class Registry { /** * Registry of variables * * @var array */ private static $registry = array(); /** * Checks if an object with this name is in the registry. * *


     *      if (Registry::exists('var')) {
     *          // Do something...
     *      }
     *

* * @return bool * @param string $name The name of the registry item to check for existence. */ public static function exists($name) { return isset(Registry::$registry[(string) $name]); } /** * Registers a given value under a given name. * *


     *      Registry::set('var', 'value');
     *

* * @param string $name The name of the value to store. * @param mixed[optional] $value The value that needs to be stored. */ public static function set($name, $value = null) { // redefine name $name = (string) $name; // delete item if ($value === null) { unset(Registry::$registry[$name]); } else { Registry::$registry[$name] = $value; return Registry::get($name); } } /** * Fetch an item from the registry. * *


     *      $var = Registry::get('var', 'value');
     *

* * @return mixed * @param string $name The name of the item to fetch. */ public static function get($name) { $name = (string) $name; if ( ! isset(Registry::$registry[$name])) { throw new RuntimeException('No item "' . $name . '" exists in the registry.'); } return Registry::$registry[$name]; } }