PHP Header Location Not Working Properly [closed]

Answer 1

You have to use the comparison operator == instead of =

if (isset($_POST['submit'])) {

    if (!empty($_POST['electronics'])) {

        if ($_POST['electronics'] == "camera") {
            header("location: camera.php");
        }
        else if ($_POST['electronics'] == "cell") {
            header("location: cellphones.php");
        }
        else if ($_POST['electronics'] == "cable") {
            header("location: cables.php");
        }
        else if ($_POST['electronics'] == "tv") {
            header("location: tv.php");
        }
    }

...

Also, the exit() is also redundant as you are already redirecting to another page.