At 11:59 AM -0800 3/7/08, revDAVE wrote:
I have this:
<?php if (trim($_SESSION['nowtoctype']) == 'thistype')
{print '<a href="page1.php">page1</a>';}else{print '<a href="
page2.php">page2</a>';} ?>
I will get the error:
Notice: Undefined index: nowtoctype in ...
If the variable has not yet been defined...
Is there a way to check if this var is already defined? ... (and then I can
define it - if not)
This is something I run into often and here is how I solve it.
$action = isset($_GET['action']) ? $_GET['action'] : null;
$action = isset($_POST['action']) ? $_POST['action'] : null;
$action = isset($_SESSION['action']) ? $_SESSION['action'] : null;
If you expect anything to be provided via GET, POST, or SESSION, then
use one of these to initialize it. The null, of course can be
changed to whatever default value you want.
Cheers,
tedd
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