Php implements source code encryption. php source code encryption _ PHP Tutorial

Php implements source code encryption, and php source code encryption. Php implements source code encryption. this example describes how php implements source code encryption. Share it with you for your reference. The specific implementation method is as follows: phpfun php implements source code encryption, and php source code encryption

This example describes how to implement source code encryption in php. Share it with you for your reference. The specific implementation method is as follows:

<? Php function RandAbc ($ length = "") {// returns a random string $ str = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; return str_shuffle ($ str);} $ filepath = 'index. php '; $ path_parts = pathinfo ($ filepath); $ filename = $ path_parts ["basename"]; $ T_k1 = RandAbc (); // random key 1 $ T_k2 = RandAbc (); // random key 2 $ vstr = file_get_contents ($ filename ); // the file to be encrypted $ v1 = base64_encode ($ vstr); $ c = strtr ($ v1, $ T_k1, $ T_k2); // replace the corresponding character with the key. $ 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% 2A6% 6C % 79% 6B % 72% 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. '{1 8 }. $ '. $ 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; // Generate the encrypted php file! Is_dir ('create/') & mkdir ('create/'); $ fpp1 = fopen ('create /'. $ filename, 'w'); fwrite ($ fpp1, $ s) or die ('file writing error'); echo 'encrypted successfully! ';

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Examples in this article describes how php implements source code encryption. Share it with you for your reference. The specific implementation method is as follows: php fun...