What could be causing the issue of not being able to log in as an admin in a PHP application?

The issue of not being able to log in as an admin in a PHP application could be caused by incorrect admin credentials, a database connection problem, or an issue with the admin authentication process. To solve this issue, ensure that the admin credentials are correct, check the database connection settings, and verify that the admin authentication process is functioning correctly. 

// Check admin credentials and authenticate
if ($_POST['username'] == 'admin' && $_POST['password'] == 'adminpassword') {
    // Successful login, set admin session
    $_SESSION['admin'] = true;
    header('Location: admin_dashboard.php');
    exit;
} else {
    // Invalid credentials, display error message
    echo "Invalid admin credentials. Please try again.";
}

Keywords

Authentication Admin PHP Session Error

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