PHP - hide url (GET) parameters

Question

I have a link in my PHP/HTML like this:

Answer 1

You can generate tokens for this functions: in your database generate an random string: This is an function which returns an random string

function gt_rnd_str($min=2,$max=9){
    $str="";
    while (strlen($str)<$max) 
        $str.=rtrim(base64_encode(md5(microtime())),"=");
    return substr($str, 0, rand($min, $max));
}

now save an token with username/id and using this you can easily generate more tokens for same user as well as cancel any token easily..