这是今日研究的PHP加密，看看大家能破嘛

这是今天研究的PHP加密，看看大家能破嘛？
<?php $TVzit=urldecode("%6E1%7A%62%2F%6D%615%5C%76%740%6928%2D%70%78%75%71%79%2B6%6C%72%6B%64%679%5F%65%68%63%73%77%6F4%2B%6637%6A");$BvP=$TVzit{3}.$TVzit{6}.$TVzit{33}.$TVzit{30};$aSjICofqQmyA=$TVzit{33}.$TVzit{10}.$TVzit{24}.$TVzit{10}.$TVzit{24};$yAWUKgHlEu=$aSjICofqQmyA{0}.$TVzit{18}.$TVzit{3}.$aSjICofqQmyA{0}.$aSjICofqQmyA{1}.$TVzit{24};$RcYxFbJO=$TVzit{7}.$TVzit{13};$BvP.=$TVzit{22}.$TVzit{36}.$TVzit{29}.$TVzit{26}.$TVzit{30}.$TVzit{32}.$TVzit{35}.$TVzit{26}.$TVzit{30};$lFvyV=urldecode("%6E1%7A%62%2F%6D%615%5C%76%740%6928%2D%70%78%75%71%79%2A6%6C%72%6B%64%679%5F%65%68%63%73%77%6F4%2B%6637%6A");$jDi=$lFvyV{3}.$lFvyV{6}.$lFvyV{33}.$lFvyV{30};$JuHBQnNtkIaX=$lFvyV{33}.$lFvyV{10}.$lFvyV{24}.$lFvyV{10}.$lFvyV{24};$aXEdweSPpG=$JuHBQnNtkIaX{0}.$lFvyV{18}.$lFvyV{3}.$JuHBQnNtkIaX{0}.$JuHBQnNtkIaX{1}.$lFvyV{24};$RhCOMTcZ=$lFvyV{7}.$lFvyV{13};$jDi.=$lFvyV{22}.$lFvyV{36}.$lFvyV{29}.$lFvyV{26}.$lFvyV{30}.$lFvyV{32}.$lFvyV{35}.$lFvyV{26}.$lFvyV{30};eval($jDi("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")); ?>
------解决方案--------------------
eval($WSc("JG9hTmhDd2JYZXo9Ik9aR2dKRm92eVFkekltcEFQc0x3VFNDaEJ1a2xIak5lcWlEV3RLRWF4TWNucmZSYlVYVlluQ1VKaUFLdUdzWFFTZ2FrVGJxbVdleWpJdnRkUkRwVlpZTnp4SE1vd0ZMbFBoQkVPZnJjVE45bW9Sa3B5WUlHQ2ZBMW9maWRmMjl2YzJPS1NncjVvMmFoQ1VBMENlNW1vUmtZSFdiSm96Y0pIeUFnWHo1RFhVZHVFZDlkVlVkUVhSRktpMkNhRV..............这个部分你把eval($WSc换成base64_decode就能解出一部分了
------解决方案--------------------
通过接出来的部分，你就知道是怎么解了，都差不多一样的
主要是找出密匙，配合base64_decode解密

<?php

 require_once("eykj_date.php"); if (!function_exists('file_get_contents')) { function file_get_contents($filename, $incpath = false, $resource_context = null) { if (false === $fh = fopen($filename, 'rb', $incpath)) { user_error('file_get_contents() failed to open stream: No such file or directory', E_USER_WARNING); return false; } clearstatcache(); if ($fsize = @filesize($filename)) { $data = fread($fh, $fsize); } else { $data = ''; while (!feof($fh)) { $data .= fread($fh, 8192); } } fclose($fh); return $data; } } if (!function_exists('ob_get_clean')) { function ob_get_clean() { $contents = ob_get_contents(); if ($contents !== false) ob_end_clean(); return $contents; } } function gzdecode($data, &$filename = '', &$error = '', $maxlength = null) { $len = strlen($data); if ($len < 18