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 Build a Simple PHP Application Working With Functions Introducing Functions

I have no idea how to use the array_sum function

<?php

$numbers = array(1,5,8);

array_sum($numbers) { echo $numbers; }

?>

4 Answers

Hugo Paz
Hugo Paz
15,622 Points

Hi Beezer,

The array_sum function returns the sum so you can do this:

<?php

$numbers = array(1,5,8);

echo array_sum($numbers) ;

?>

thanks for responding! i think my brain was done processing info for the day...pretty simple concept.

These answers are 100% clearer than its use in the video (general principles are explained but not the specific use of the function) Very frustrating.