使用MYSQL从表中调用行

I am trying to show specific information for my logged in users, i can call the user_name, but i have been able also to call info from the "website" entry which holds the html for the page, i need to be able to call "website" to each logged in user, i.e Susan (user_name) has the html showing when she logs in, BUT Barry (user_name) has the same html showing as susan, as it is being called from Susans row! Please help it is driving me mad!

Here is the code that is on the myaccount.php:

Welcome To <?php echo $_SESSION['user_name'];?>'s Account Page</strong>  
<?php   
  if (isset($_GET['msg'])) {
    echo "<div class=\"error\">$_GET[msg]</div>";
  }
?>
<?php
  $data = mysql_query("SELECT * FROM users") or die(mysql_error());
  $info = mysql_fetch_array( $data );
  Print "<b></b> ".$info['$website'] . " "; 
?>

You have to add a WHERE clause to your query. If you have a field in your table called user_name it will be like this :

"SELECT * FROM users WHERE user_name = '" . $_SESSION['user_name'] . "'";

Note : You are using a deprecated (mysql_query) you should use rather (mysqli_query) which has different syntax http://php.net/manual/en/mysqli.query.php

Have you tried

$data = mysql_query("SELECT * FROM users WHERE username='$_SESSION[user_name]'") or die(mysql_error());