Yesterday at work, I was having trouble passing multiple variables through the URL as a $_GET variable. If you're printing (print_r()) your variables and they are just coming out as strings of 'Array', I may just be able to help you out!

Try this:

//first grab the end of string
?var1[]=31&var1[]=57&var2=add $url = $_SERVER['QUERY_STRING']
 
//next use parse_str() to use the url to create the array
$theNewArray = parse_str($url); print_r($theNewArray);
 
It should give you an array of all the values in the url. If you need to reference the first variable in the var1 array:
echo $theNewArray[var1][0];  
 
If you need to reference the second variable in the var1 array:
echo $theNewArray[var1][1];
 
If you need to reference the last variable:
echo $theNewArray[var2];
 
Hope this might help someone!
--LB