title: Symfony2 source code encryption / encoding
body: <p>We're developing with the Symfony2 framework and selling the application to customers. We don't want that customers have the source code so we want to encrypt it. In Zend Framework we use Ioncube but this isn't working with Symfony2 because Symfony2 reads the PHP files to create a caching file (classes.php).</p>
  
  <p>Is there any solution for encrypting the src directory?</p>