How to implement source code encryption in php, php source code encryption_PHP tutorial

How to implement source code encryption in PHP, PHP source code encryption

The example in this article describes how PHP implements source code encryption. Share it with everyone for your reference. The specific implementation method is as follows:

<&#63;php
  function RandAbc($length=""){//返回随机字符串
  $str="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
  return str_shuffle($str);
 }
 $filepath='index.php';
 $path_parts= pathinfo($filepath);
 $filename=$path_parts["basename"];
 $T_k1=RandAbc();//随机密匙1
 $T_k2=RandAbc();//随机密匙2
 $vstr=file_get_contents($filename);//要加密的文件 
 $v1=base64_encode($vstr);
 $c=strtr($v1,$T_k1,$T_k2);//根据密匙替换对应字符。
 $c=$T_k1.$T_k2.$c;
 $q1="O00O0O";
 $q2="O0O000";
 $q3="O0OO00";
 $q4="OO0O00";
 $q5="OO0000";
 $q6="O00OO0";
 $s='$'.$q6.'=urldecode("%6E1%7A%62%2F%6D%615%5C%76%740%6928%2D%70%78%75%71%79%2A6%6C%72%6B%64%679%5F%65%68%63%73%77%6F4%2B%6637%6A");$'.$q1.'=$'.$q6.'{3}.$'.$q6.'{6}.$'.$q6.'{33}.$'.$q6.'{30};$'.$q3.'=$'.$q6.'{33}.$'.$q6.'{10}.$'.$q6.'{24}.$'.$q6.'{10}.$'.$q6.'{24};$'.$q4.'=$'.$q3.'{0}.$'.$q6.'{18}.$'.$q6.'{3}.$'.$q3.'{0}.$'.$q3.'{1}.$'.$q6.'{24};$'.$q5.'=$'.$q6.'{7}.$'.$q6.'{13};$'.$q1.'.=$'.$q6.'{22}.$'.$q6.'{36}.$'.$q6.'{29}.$'.$q6.'{26}.$'.$q6.'{30}.$'.$q6.'{32}.$'.$q6.'{35}.$'.$q6.'{26}.$'.$q6.'{30};eval($'.$q1.'("'.base64_encode('$'.$q2.'="'.$c.'";eval(\'&#63;>\'.$'.$q1.'($'.$q3.'($'.$q4.'($'.$q2.',$'.$q5.'*2),$'.$q4.'($'.$q2.',$'.$q5.',$'.$q5.'),$'.$q4.'($'.$q2.',0,$'.$q5.'))));').'"));';
 $s='<&#63;
 '.$s.
'
 &#63;>';
 echo $s;
 //生成 加密后的PHP文件
 !is_dir('create/') && mkdir('create/');
 $fpp1 = fopen('create/'.$filename,'w');
 fwrite($fpp1,$s) or die('写文件错误');
 echo '加密成功！';

I hope this article will be helpful to everyone’s PHP programming design.

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