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 Build a Simple PHP Application Adding a Contact Form Working with Concatenation and Whitespace

+= in php


http://www.w3schools.com/php/php_operators.asp According to this, I am supposed to be able to use += instead of $email_body = $email_body . '' but it doesn't work...

1 Answer

Judging by the name of your variable: $email_body, I assume it's a String variable. You cannot do += on Strings because that's used for addition (of integers for example).

What you're looking for is .= which is for concatenating strings.

Got it now, Thanks !