If I have a link that will pass on a variable to a function within a script, the value is not passed, 

for example:



http://mywebsite/welcome.php?ID=1


the value that comes after the ? does not get read into the script, so if the function is



<?php
          function Welcome($ID)
          {
           echo "The session ID is " . $ID;
          }

?>

the function will display .....

         "The session ID is     "

It doesn't even recognize that the value was assigned to ID,  Is there something that I didn't turn on in my PHP configuration, or is it a PHP bug

By the way, Im running apache server 2 (latest version as of May 10, 2003) PHP4.3.1 and MySQL

And please, If my little function above is not coded correctly, please excuse me, it's only a sample I came up with on the fly to show my problem, and I have never ever before coded PHP before 2 days ago, but if I understand PHP correctly, thats the closest I can come to a real function without looking at actual code