prepare("SELECT * FROM users WHERE username = ?");
$stmt->execute([$username]);
$user = $stmt->fetch(PDO::FETCH_ASSOC);
if ($user && password_verify($password, $user['password_hash'])) {
$_SESSION['user_id'] = $user['id'];
$_SESSION['username'] = $user['username'];
header("Location: index.php");
exit;
} else {
$message = 'Invalid username or password.';
}
} catch (PDOException $e) {
$message = 'Error: ' . $e->getMessage();
}
}
}
?>
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