php gzinflate和base64_decode加密解密
<?php function encode_file_contents($filename) { $type=strtolower(substr(strrchr($filename,’.'),1)); if(’php’==$type && is_file($filename) && is_writable($filename)){// 如果是PHP文件 并且可写 则进行压缩编码 $contents = file_get_contents($filename);// 判断文件是否已经被编码处理 $pos = strpos($contents,’powered by arzn QQ:1314778′); if(false === $pos || $pos>100){ // 去除PHP文件注释和空白,减少文件大小 $contents = php_strip_whitespace($filename); // 去除PHP头部和尾部标识 $headerPos = strpos($contents,’<?php’); $footerPos = strrpos($contents,’?>’); $contents = substr($contents,$headerPos+5,$footerPos-$headerPos); $encode = base64_encode(gzdeflate($contents));// 开始编码 $encode = ‘<?php’."\n eval(gzinflate(base64_decode("."’".$encode."’".")));\n\n?>"; return file_put_contents($filename,$encode); } } return false; } //调用函数 $filename=’code.php’; encode_file_contents($filename); echo "OK,加密完成!" ?>