文件加密

 

<?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 znz amznz.com');
  if(false === $pos &#124;&#124; $pos>100){ // 去除PHP文件注释和空白，减少文件大小
   //$contents = php_strip_whitespace($filename);
   $contents = strip_whitespace($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
   $encode = '<?php'."\n eval_r(gzinflate(base64_decode("."'".$encode."'".")));\n\n?>";
   return file_put_contents($filename,$encode);
  }
 }
 return false;
}
//调用函数
$filename='ff.php';
encode_file_contents($filename);
echo "OK,加密完成！"
?>