View file phpBB3/vendor/twig/twig/lib/Twig/Parser.php

<?php

use Twig\Parser;

class_exists('Twig\Parser');

@trigger_error('Using the "Twig_Parser" class is deprecated since Twig version 2.7, use "Twig\Parser" instead.', \E_USER_DEPRECATED);

if (false) {
    /** @deprecated since Twig 2.7, use "Twig\Parser" instead */
    class Twig_Parser extends Parser
    {
    }
}