Encode and store multiple variables in URL - php

Question

I know this is possible and I researched it in many websites, but didn't find anything that could do exactly what I need.
I need to encode and store two parameters in URL and then retrieve it with $_GET method.
The parameters are not sensitive data. My purpose is mainly to obfuscate it, so the visitors can't read it without website accessing.
I have something like this:
site.com/?name=john&food=banana%20split
and I need it to become something like this:
site.com/g57HT90dw8lC5p
How can I do this? Thanks.
(Sorry for my bad english)
EDIT: I should explain it a bit more.
I know I'll have to use mod_rewrite and I got that part covered;
The second parameter is a complete sentence (with spaces, punctuation, etc.);
I need this to create a Christmas Card, so none of these parameters require secure methods. What I really need to store is just a name and a simple message.

Answer 1

This is wrong approach - you said it is not sensitive so you better fix your code it will not be hacked if someone send you crafted data. Obfuscating prevents average users from doing changes but noone skilled be fooled by this. Also many browsers GET is limited (so can be configured PHP and server) so this may hit the wall sooner than you want. But if you insist you want this approach, you can put all variables into json_array, and then encode using base64.
$myData = array('foo'=>1, 'bar'=>'hax0r');
$arg = base64_encode( json_encode($myData) );
http://site.com/secret=$arg
and back:
$myData = json_decode( base64_decode( $_GET['secret'] ) );
But again - this is wrong by design.

Answer 2

Append the two string values together; then use some encoding function like str_rot13 or whatever

Answer 3

You could just uuencode it.
On create
$converted = convert_uuencode('?name=john&food=banana');
// 6/VYA;64]:F]H;B9F;V]D/6)A;F%N80``
And on decoding
$query = $_SERVER['QUERY_STRING'];
// 6/VYA;64]:F]H;B9F;V]D/6)A;F%N80``
$real = convert_uudecode($query);
// ?name=john&food=banana
The point of uuencoding is to make data safe for network transmissions. It does not provide protection, but it will make them something else than clear text.

Answer 4

Try these PHP functions convert_uuencode and convert_uudecode
It is much safer than using only base64
function encrypt_decrypt ($data, $encrypt) {
if ($encrypt == true) {
$output = base64_encode (convert_uuencode ($data));
} else {
$output = convert_uudecode (base64_decode ($data));
}
return $output;
}
$enc_txt = encrypt_decrypt ("name=john&food=banana%20split", true);
echo $enc_txt."\n";
// PTtGJU05M1VKO1ZBTilGOU87VjBdOEYlTjg2WUEpMyhQPFchTDo3MGAKYAo=
echo encrypt_decrypt ($enc_txt, false);
// name=john&food=banana%20split

Answer 5

Look at PHPs Doc Base64Encode . just encode the string, and decode it when reading the query.