Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialTaraj Shah
21,073 PointsWhy can't we omit 'isset' here?
Referring to the code below:
<?php if(isset($_GET["status"])) && $_GET["status"] == "thanks" {..}?>
Why we need first argument i.e. isset($_GET["status"]) ? Because if it is not set then the second condition will be false anyway!
1 Answer
Cary Dean
13,854 PointsReferencing an element that doesn't exist can cause warnings or errors. It is good practice to always make sure they exist first.