View file vendor/symfony/polyfill-util/Binary.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Polyfill\Util;

if (\extension_loaded('mbstring')) {
    class Binary extends BinaryOnFuncOverload
    {
    }
} else {
    class Binary extends BinaryNoFuncOverload
    {
    }
}