PhpCsFixer\StdinFileInfo::getFilename PHP Method

    public function getFilename()
    {
        /*
         * Useful so fixers depending on PHP-only files still work.
         *
         * The idea to use STDIN is to parse PHP-only files, so we can
         * assume that there will be always a PHP file out there.
         */
        return 'stdin.php';
    }