Problems with require() and variables

Consider this: I have display.php, a script that will do XML parsing into an array and display its contents. I have view.php, a script that will include display.php and have to manipulate the variables within display.php for itself. So in view.php I have: require('/.../.../display.php'); However, when display.php finishes being "required", I lose all of my variables that I need for view.php. How do I retain them?? How can I ensure that these variables in display.php will also exist in view.php? Thanx Phil