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 Using PHP with MySQL Querying the Database with PHP Retrieving the Result Set

Posted by Justin Vail
Justin Vail
9,841 Points

error-on-$results-variable

This is the error message I get in my browser when I attempt var_dump(results); "Notice: Undefined variable: results in C:\xampp\htdocs\shirts4mike\database.php on line 19 NULL"

1 Answer

Carlos Federico Puebla Larregle
Carlos Federico Puebla Larregle
21,073 Points
Carlos Federico Puebla Larregle
Carlos Federico Puebla Larregle
21,073 Points

Have you defined the variable named "results" before using it as an argument in that "var_dump()"?