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 Integrating PHP with Databases Limiting Records in SQL Setting Up Pagination Variables

Where/how is the value "pg" defined ?

Alena uses "pg" in the if (ISSET($_GET["pg"])) condtional for for the if block that sets the current_page varable. I cannot see where we are getting "pg" from.

Thanks all for your help!

2 Answers

Hi Matt!

She doesn't show an example of it, unfortunately, but "pg" would come from the queryString.

You would have to call the page from the browser address bar something like this:


This being where the $_GET["pg"] is created:


Keep in mind that IntegratingPHPwithDatabasesOnLocalHostOrWorkspace and pageNameOrNumber are just made up for the example.

More info:


I hope that helps.

Stay safe and happy coding!

Thanks Peter, that is very helpful as always :)