Salve Galera,
Quer certificar em um dos frameworks PHP, segue os links:
CakePHP => http://certification.cakephp.org/
Laravel => https://laravel.com/certification/
Symfony => https://sensiolabs.com/en/symfony/certification
Zend Framework => http://www.zend.com/en/services/certification/framework
Até a proxima.