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 trial

PHP Integrating PHP with Databases Using Relational Tables Adding a Secondary Query

if(empty($item)) return $item;

What exactly is this line of code doing?

2 Answers

The conditional is asking if the variable #item is empty then return the variable.

the empty() function looks to see if a variable has a value. so in the conditional if says if no value for the variable is true then return the variable.

Dennis Amiel Domingo
Dennis Amiel Domingo
15,960 Points

Yes that's right jaycode. The variable that we got from $_GET is passed into the single_item_array function as a variable named $id.