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

AVINASH KUMAR
seal-mask
.a{fill-rule:evenodd;}techdegree
AVINASH KUMAR
Front End Web Development Techdegree Student 8,110 Points

$output=""; $output=$number.$output;

If $output=""; Then, if I multiply $number(which is 1) with $output, 1 will be multiplied with which number. I mean, what is the value of the above declared $output variable.

Thanks..

Simon Coates
Simon Coates
28,694 Points

"" seems to convert to 0. However, multiple is * not a dot. The dot is string concatenation.