Undefined index with PHP sessions

Question

I\'m new to PHP and am even more of a beginner when it comes to sessions. I have my index.php page, which is where users can register and login. The forms are posting to val

Answer 1

If you're getting undefined index errors, you might try making sure that your indexes are set before you try comparing the values. See the documentation for the isset function here: http://php.net/manual/en/function.isset.php

if (isset($_SESSION['registered']))
  if ($_SESSION['registered'] != NULL){
      echo $_SESSION['registered'];                   
  }
}
if (isset($_SESSION['badlogin']))
  if ($_SESSION['badlogin'] != NULL){
      echo $_SESSION['badlogin'];
  }
}
if (isset($_SESSION['neverused']))
  if ($_SESSION['neverused'] != NULL) {
      echo $_SESSION['neverused'];                    
  }
}