title: Header location send me to blank page
body: <p>The header send me to the same address like the correct page but empty (all white).
  I have tried a few things to chack and it run good (like change a text).
  The problem is that it doesn't send me to google.</p>
  
  <pre><code>$insert = 'INSERT into appusers(appname, email, password, month) 
            VALUES("'.$appname.'","'.$email.'","'.$password.'","'.$monthpay.'")';  
  mysql_query($insert);
  session_start();
  $_SESSION['id'] = $data['id']; 
  header("Location: http://www.google.com/"); 
  exit; 
  </code></pre>
  
  <p>And I have tried to add ob_start(); at the start and it doesn't work.</p>