I am working on an application for my senior project at school. I am wondering if anyone might possibly know a way to pass a username and password to the pop-up authentication box in squid when auth_param is set. Something I can use with my PHP to keep the interface slick and be able to my PHP login to do many other things. This is what I have been trying but doesn't seem to work header("Location: http://$user:$password@xxxxxxxxxxxxxx"); Were $user and $password are already variables I have defined in my createuser/login application Any help or ideas would be greatly appreciated.