Problem

Hi, I have installed php 4.3.1 in my Apache server 1.3.2 as a server module abd the operative system is Window 98. It works with my php scripts but, when I try to pass variables to a php from another file or from the browser, php doesn't recognise the variable. For example, with a script like this: test.php <html> <body> <?echo $var;?> </body> </html> when I call it from a browser like this: test.php?var=hello I get a blank screen. I have tried this script in other php servers and it works correctly. So maybe I have to load a specific module or parameter. Could somebody help me ? Thanks. Sandra