How would I...

[Wuggy]

I want to have a regular link. If its clicked I want to add a session which is a variable on the page. So if the variable is 20 that in the next page I can just call it by typing.
$_SESSION["variable"] = $variable;
and typing $variable where I want it.
How would I do that?

[kellog]

You could send the variable via GET inside the link, then on the page your linking to, set the session variable for it:

//page1
<a href="somepage.php?var=<?=$PHPVar?>">click here</a>

//page2

$_session["var"] = $_GET["var"];