[SOLVED] Setting variable values through the URL.

[DavidGS]

I know this is a rather trivial question, but how do I go about setting the value of  a variable through a URL? Like, say you had a page which has "tabs" and for each tab you want to display different content. To make sure the user sees the right tab, you would use something like http://example.com/index.php?tab=1

 

When I try to set the value of a variable that way it doesn't return anything.

 

print "$pageid";

 

with the URL http://localhost/index.php?pageid=1

 

Nothing is printed because pageid doesn't have a value.

 

But if I try defining the variable in the script:

 

$pageid = 1;

 

It returns whatever value I defined it with instead.

 

What is right way of using variables in your URL?

[Northern Flame]

$pageid = $_GET['tab'];

 

echo $pageid;

[DavidGS]

$pageid = $_GET['tab'];

 

echo $pageid;

 

Thank you very much.

[Northern Flame]

you're welcome