PHP Objects, Patterns, and Practice, Third Edition

CHAPTER 12 ■ ENTERPRISE PATTERNS

231

if ( isset( $this->values[$key] ) ) {

return $this->values[$key];

}

return null;

}

protected function set( $key, $val ) {

$this->values[$key] = $val;

}

static function getRequest() {

return self::instance()->get('request');

}

static function setRequest( \woo\controller\Request $request ) {

return self::instance()->set('request', $request );

}

}

The session-level implementation simply uses PHP’s built-in session support:

namespace woo\base;

// ...

class SessionRegistry extends Registry {

private static $instance;

private function __construct() {

session_start();

}

static function instance() {

if ( ! isset(self::$instance) ) { self::$instance = new self(); }

return self::$instance; ...