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addUser.php
admin.php
check_login.php
db.php
deleteUser.php
editUser.php
index.php
insertUser.php
login.php
logout.php
updateUser.php

`insertUser.php`

22 lines UTF-8 Unix (LF)

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<?php
require_once "check_login.php";
require_once "database_connection.php";

$username = trim($_POST["username"] ?? "");
$password = trim($_POST["password"] ?? "");

if ($username === "" || $password === "") {
  header("Location: addUser.php?mess=Tomma fält är inte tillåtna.");
  exit;
}

$sql = "INSERT INTO user (username, password) VALUES (?, ?)";
$stmt = $conn->prepare($sql);
$stmt->bind_param("ss", $username, $password);
$stmt->execute();

$newId = $conn->insert_id;

header("Location: admin.php?mess=Användare skapad (id {$newId}).");
exit;