Piwik\Filesystem::havePhpFilesSameContent PHP Method

    private static function havePhpFilesSameContent($file1, $file2)
    {
        if (self::hasPHPExtension($file1)) {
            $sourceMd5 = md5_file($file1);
            $destMd5 = md5_file($file2);
            return $sourceMd5 === $destMd5;
        }
        return true;
    }