This tutorial aplies to anything like
page.php?var=stuff&var2=stuff. Let me define a few terms to start:
'query string' is the ?page=blah part in 'page.php?page=blah'.
page=blah is called a variable=value pair. You can seperate them by
doing 'page.php?var1=bob&var2=tom'.
Now, something that will cause many of you problems is
register_globals. If its off (which it is by default in the last few
php distrubs), using $queryStringVar when going to
page.php?queryStringVar=tom wont print out anything. In fact, chances
are it will give you an unset / undefined variable error... whcih isnt
good! But we have a soultion.
Remember the variable=value pairs? We can get things from the query
string through the $_GET array, no matter what. So since
$queryStringVar doesnt work, we have to get it through
$_GET['queryStringVar'].
