for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
* This file is part of the 2amigos/2fa-library project.
* (c) 2amigOS! <http://2amigos.us/>
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
class CharactersValidator implements ValidatorInterface
public function validate($value)
return (bool) preg_match('/^[ABCDEFGHIJKLMNOPQRSTUVWXYZ234567]+$/', $value);