Jasny\Twig\PcreExtension::get PHP Метод

    public function get($value, $pattern, $group = 0)
    {
        $this->assertNoEval($pattern);
        if (!isset($value)) {
            return null;
        }
        if (!preg_match($pattern, $value, $matches)) {
            return null;
        }
        return isset($matches[$group]) ? $matches[$group] : null;
    }