class encryptCalss
{
var $key=12;
function encode($txt){
for($i=0;$ikey);
}
return $txt=urlencode(base64_encode(urlencode($txt)));
}
function decode($txt){
$txt=urldecode(base64_decode($txt));
for($i=0;$ikey);
}
return $txt;
}
}
?>
可以逆转的加密类,没有密钥很难破解











