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//function that takes username and avatar function take_username_avatar() { try{ $results = array(); $query = mysql_query("SELECT username,avatar FROM data WHERE username!='{$_SESSION['username']}'")or die(mysql_error()); while($row = mysql_fetch_assoc($query)) { $results[] = $row; } return $results; } catch (Exception $e){ die("Error showing user list"); } } //page that shows user list $username_avatar = take_username_avatar(); foreach ($username_avatar as $user_avatar ) { ?> <p><a href='index.php?page=profile& username =<?php echo $user_avatar [' username ']; ?>'> <?php echo $kor_avatar[' username '] ?></a></p> <a href='index.php?page=profile&username=<?php echo $ user_avatar ['username']; ?>'> <img src="avatar/<?php echo $kor_avatar['avatar']; ?>" height='100' width='100' alt='avatar'></a> <?php } I have been trying to solve this for some time, even too long and I would really appreciate the help of experienced PHP user. I have made that user can see the list of the other members on the website but I also want to show error message if something goes wrong. I did it with try-catch block but I also been wondering if there is an efficient way to do that. I would also like to know how to make the error to happen because I need to make a print screen for documentation.