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.


Struck on this CC

while($i < 10){
echo $i;

1 Answer

Christopher Hall
Christopher Hall
9,052 Points

You have an error on this line:


it should be:

$i+=1;  // equivalent to $i = $i + 1; or in this case since you're just adding 1 also: $i++;

You're incrementing the $i variable twice though, before and after echoing it. Is that what you want? This would result in an output of 13579.