PHP Redirect Not Working When In A Nested IF Statement

I’ve looked at several of the “PHP redirect not working ……” posts, but I haven’t had any luck figuring out what is going on with my problem.

The code below always goes to teacherActivity_2.php even though the 2nd if passes and should redirect to teacherActivity_3_shadowT.php. If I comment out the teacherActivity_2.php, the page redirects (as expected) to teacherActivity_3_shadowT.php. I think I’m missing some obscure rule that I should know but don’t. Any ideas?

Why does this redirect to teacherActivity_2.php instead of teacherActivity_3_shadowT.php?

if($test == 'yes') {
  if($_SESSION['wblReporting']['activity'] == 'shadowT'){
  header('Location: /app/do_cte-wbl/forms/teacherActivity_3_shadowT.php');
  }
header('Location: /app/do_cte-wbl/forms/teacherActivity_2.php');
}
?>

Answer

Try the following:

if($test == 'yes') {
  if($_SESSION['wblReporting']['activity'] == 'shadowT'){
    header('Location: /app/do_cte-wbl/forms/teacherActivity_3_shadowT.php');
    die();
  } else {
    header('Location: /app/do_cte-wbl/forms/teacherActivity_2.php');
    die();
  }
}

This worked no matter how many elseifs I used.