PHP online encryption decryption program written by wiki-shan_PHP tutorial

Correspondingly, I wrote a simple decryption, specifically for eval. This principle is very useful, so write it down here.

Copy code The code is as follows:

/*
author:zhiwushan
date:20080411
*/
　
//Encrypted file content
$a="
eval(gzinflate(str_rot13(base64_decode('DdNUsptVAADQq2vn7+oFGU6VPb+EyE4EiSA2LhAZUZN2OP343eF9//f7 +1S +Jd1KbNZ90SVY/jUv098JLgT1lSZmztJ/s/wNs/zrp5jd/XZLrter6I6UEqkkshUXmfWmEQNnhJfcdH7qCvlmY60ku0QVlfMMSUMnMO5EAo7RTF3GKem+RGMeDAg96YCxmZf+wUVdJUVUJTyI d9BivvZlTpv64zYb80BDE2znHTa/CFBbxGMa66VW9ucZl6uTunr8bXPRSB+ziagCm+pJxOtHPbpOJarMvXb8XjD1B7RMGC/g0vsFnElCvW7KUD1OLRPt7MPJPVJpwW/vnS0l1TnALytgP5GMZt 1IdEWat3XONVendoWF5ZbuJcdYIIeNfxeNsX74gMnpTZgoBByrZo/1ZZ9CmjIktXDBdoe4X+Jig btDgnlXWxJDa6i/hh7MtRibAPdhFxwldbPEonbZdfSeK8XNzFTB501FlIcFB8Oo+W8dOYmQeSf3 P6q6SQx4KeEAZ2Y6Cnm6OeHMEOqBkkvIzXj08Jh5HMrXXMSHtz4Pk1wvV2kTDlDZoxjKTzd b7XpcMzPXDvIW6gfYsdcJz93w2hFQsQRQliFwK82cblUfV+CQHU+73AT7PL3fKMHXa0ZJtp LVZ7bEPGE/yIO1Wmelx/LiUXU+Ikv9ZwLyRWRYZ32ElLZCdmBIcUAfFlAl+pwdrpiucej6AA68JfQJfJuIhmQOqk9UHlJl2Ufp5tKbM+PYBU504baq0nurFEj1cXYaPtGOKimjKzIOJ4rHWXCvP2SZ0 4MsA4qbNkYwm3xqIk6VWKLLC659Hwxc+DQN75dIOfd9K /asb3ldWzcZ/0dwzUqGbNfs9uTnD+xRQRp1g5dK9loQMQk3amvCjyrdCzuYVHqsVTayHr58EMmM+807dukI4bTEMgRtxk+YIdqA0BfjrtAQLuBvZtHHsRPzvN2Q02hCn121Z2ETWe0nDACMx hhu//Pn569/vv8t/R8='))));
";
echo decodephp($a);
　
function decodephp($a ) {
$max_level=300; //Maximum number of levels
for($i=0;$i<$max_level;$i++) {
Ob_start();
eval(str_replace(' eval','echo',$a));
$a = ob_get_clean();
if(strpos($a,'eval(gzinflate(str_rot13(base64_decode')===false) {
             return $a;
                                              



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truehttp: //www.bkjia.com/PHPjc/319411.htmlTechArticle correspondingly wrote a simple decryption, specifically for eval. This principle is very useful, so write it down here. Copy the code The code is as follows: ?php /* author:zhiwushan date:20080411 */ //Already...