Login system, logs you out every time you reload

Question

I've been bothered by this problem for quite a while now, and i just can't figure it out. Once a user tries to login, he's being logged in. But once he loads another page, or refreshes he's logged out right away. The really weird thing is, that once i test it locally on XAMPP it works without a problem, but when it runs on my webpage, it dosen't work. They run on almost the same version of PHP 5.5.11 (locally) 5.5.18 (on webpage) Can anyone explain me what's wrong? Any help is greatly appreciated

From login.php

      $query = "SELECT * FROM user WHERE email='$email' AND password='$passi' AND com_code IS NULL";
      $result = mysqli_query($mysqli,$query)or die(mysqli_error());
      $num_row = mysqli_num_rows($result);
      $row=mysqli_fetch_array($result);
      if( $num_row ==1 )
      {
       $_SESSION['user_name']=$row['username'];

        header("Location: index.php");


  }


  else
         {

   $message= "Wrong login message";
  }

From my other pages, that checks if the user is logged in:

 if($_SESSION['user_name'] == '') {
   die ("Please log in to see this page");

    } else {

        echo "Hey $_SESSION[user_name]!";
    }

I just solved the problem. I had the session_start(); in the somewhat top, but not completely. I fixed it by, simply placing session_start(); in the absoloute top. Thank you :) — NotKimJongUn, Nov 13 '14 at 22:33
[Prevent SQL Injection!](http://stackoverflow.com/questions/60174/how-can-i-prevent-sql-injection-in-php) — Jay Blanchard, Nov 13 '14 at 22:34
Hello jay, i already did infact, i just didn't show you. You can see it here: http://pastebin.com/NpZUnsdz Will this prevent that kind of SQL injections? — NotKimJongUn, Nov 13 '14 at 22:38

score 0 · Accepted Answer · answered Nov 13 '14 at 22:34

0

i fixed the problem. I a session_start(); in the somewhat top of the page, but not completely. I fixed it by, simply placing session_start(); in the absoloute top. Thank you :)

answered Nov 13 '14 at 22:34

NotKimJongUn

51
2
11

Login system, logs you out every time you reload

1 Answers1