PHP header() called via AJAX not working properly

Question

I\'m new to web development.

Right now I\'m working on a login feature on a site. I used Javascript/AJAX to fetch the username and password and send it to a PHP file for

Answer 1

What's happening exactly?

After header() is called in php, php still executes the rest of the script unless you stick an exit; after the header() call. This is only if you don't want to execute the rest of login.php