Php script that is supposed to display profile picture based on username throwing error

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Hello, I am having trouble getting my script to function properly. I have written a script that is supposed to go out to the database and retrieve a profile picture based on the username of the current user. I keep getting an error.

Here is the full error report from my domain host:

Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42S22]: Column not found: 1054 Unknown column 'HansBresko' in 'where clause'' in /home/www/mujomusic.net/WDV341/PHP-Final/admin-homepage.php:23 Stack trace: #0 /home/www/mujomusic.net/WDV341/PHP-Final/admin-homepage.php(23): PDOStatement->execute() #1 {main} thrown in /home/www/mujomusic.net/WDV341/PHP-Final/admin-homepage.php on line 23

and here is the code for the script:

<?php

session_start();

if(isset($_SESSION["username"]))
{
     //do nothing
}

else
{
     header("location:admin-login.php");
}

include 'session_timeout.php';

include 'connect.php';
//login_success.php

$currentuser = $_SESSION["username"];

$resultX = $conn->prepare("SELECT profile_pic FROM admin_credentials WHERE username=$currentuser");
$resultX->execute();

?>

I have tried everything and it just won't work. Please help!

What I have tried:

I have tried multiple documented solutions but nothing seems to work.

Posted 13-Dec-17 0:37am

Member 13573818

Updated 13-Dec-17 1:36am

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Jochen Arndt · Answer 1 · 2017-12-13T01:36:00

username is a reserved SQL keyword. You should avoid using such as table or column name. To avoid the error you must quote the name or (for column names) prepend the table name:

PHP

$resultX = $conn->prepare("SELECT profile_pic FROM admin_credentials WHERE admin_credentials.username=$currentuser");