how to grab uri values
===

i had set a uri like this by java script

    location.href="biling.php?itemsize="+value5+"&"+value6;
and now i want to take this value5 and value6 into php.
think 

    if value5 = 5 and value6=mg

then i want to take those values in to php variable 
as 5mg

i tried to do this 

    $sizevalue=preg_replace('\'&\'', '', $_GET['itemsize']);
but when i echo it it shows me only "5"
how can i correct this? 
thank you.

