Dynamically Create Subclass

// Class extension to be evaluated
		$extension = 'class '.$class.' extends '.$class.'_Core { }';

		// Start class analysis
		$core = new ReflectionClass($class.'_Core');

		if ($core->isAbstract())
		{
			// Make the extension abstract
			$extension = 'abstract '.$extension;
		}

		// Transparent class extensions are handled using eval. This is
		// a disgusting hack, but it gets the job done.
		eval($extension);

if(true)
{
    class foo
    {
       // methods
    }
}

$proxyClassOnDisk = '/path/to/proxyCodeCache/' . $clazz .'.cachedProxyClass';
if ( ! file_exists($proxyClassOnDisk) ) {
    // Generate the proxy and put it into the proxy class on disk.
    file_put_contents($proxyClassOnDisk, $this->generateProxy($object));
}
require_once($proxyClassOnDisk);