Code for simple encryption and decryption of php5 numeric string

Code for simple encryption and decryption of php5 numeric string

A piece of code that can encrypt and decrypt a numeric string. if you need it, refer to it. The code is as follows: Replaceenc ['/'. $ I. '/'] = $ this-> replacement {$ I}; $ this-> replacedec ['/'. $ this-> replacement {$ I }. '/'] = $ I;} public function encrypt ($ str) {return preg_replace (array_keys ($ this-> replaceenc), $ this-> replaceenc, $ this-> mynotin (preg_replace ("/(.) (.) /"," $ {2} $ Software HR ", $ str);} public function decrypt ($ str) {return preg_replace ("/(.) (.) /"," $ {2} $ Software HR ", $ this-> mynotout (preg_replace (array_keys ($ this-> Replacedec), $ this-> replacedec, $ str);} private function mynotin ($ str) {$ str_out = ""; $ I = 0; while (isset ($ str {7 * $ I}) {$ str_out. = ($ this-> prefix. substr ($ str, $ I * 7, 7) + 0) ^ $ this-> match; $ I ++;} return $ str_out ;} private function mynotout ($ str) {$ str_out = ""; $ I = 0; while (isset ($ str {8 * $ I}) {$ str_out. = substr ($ str, $ I * 8, 8) + 0) ^ $ this-> match, 1); $ I ++ ;} return $ str_out ;}}?>