PHP文件加密

<?php
//返回随机字符串
function RandAbc($length = "")
{
    $str = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
    return str_shuffle($str);
}
  
//源文件
$filepath   = 'pinyin.php';
$path_parts = pathinfo($filepath);
$filename   = $path_parts["basename"];
$vstr          = file_get_contents($filename);//要加密的文件
$v1           = base64_encode($vstr);
  
$T_k1 = RandAbc();//随机密匙1
$T_k2 = RandAbc();//随机密匙2
  
//根据密匙替换对应字符。
$c = strtr($v1,$T_k1,$T_k2);
$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('?>'.$'.$q1.'($'.$q3.'($'.$q4.'($'.$q2.',$'.$q5.'*2),$'.$q4.'($'.$q2.',$'.$q5.',$'.$q5.'),$'.$q4.'($'.$q2.',0,$'.$q5.'))));').'"));';
  
$s = '<? '.$s. ' ?>';
  
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!';

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