[PHP]代码

     crypt_key = $crypt_key;}public function php_encrypt($txt) {   srand((double)microtime() * 1000000);   $encrypt_key = md5(rand(0,32000));   $ctr = 0;   $tmp = '';   for($i = 0;$i
    
      crypt_key));}public function php_decrypt($txt) {   $txt = self::__key(base64_decode($txt),$this -> crypt_key);   $tmp = '';   for($i = 0;$i < strlen($txt); $i++) {    $md5 = $txt[$i];    $tmp .= $txt[++$i] ^ $md5;   }   return $tmp;}private function __key($txt,$encrypt_key) {   $encrypt_key = md5($encrypt_key);   $ctr = 0;   $tmp = '';   for($i = 0; $i < strlen($txt); $i++) {    $ctr = $ctr == strlen($encrypt_key) ? 0 : $ctr;    $tmp .= $txt[$i] ^ $encrypt_key[$ctr++];   }   return $tmp;}public function __destruct() {   $this -> crypt_key = null;}}$sc = new SysCrypt('phpwms');$text = '110';print($sc -> php_encrypt($text));print('
     
');print($sc -> php_decrypt($sc -> php_encrypt($text)));?>