Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

PHP PHP Basics Daily Exercise Program True PHP

error message unclear

need explanation of error message I have the following code: $a = 5; $isBoolean = true; $isIdentical; $isIdentical = var_dump($a === "5"); and get an error message saying "do not see variable $isIdentical" I am not sure why.

1 Answer

var_dump doesn't return anything. See docs

Try your code in a workspace and add the last line:

<?php
$a = 5;
$isBoolean = true;
$isIdentical;
$isIdentical = var_dump($a === "5");
var_dump($isIdentical);

you'll see $isIdentical is assigned NULL

treehouse:~/workspace$ php index.php                                                                           
bool(false)                                                                                                    
NULL

So for the challenge eliminate var_dump and you'll pass