first commit

include/authenticator.php

@@ -0,0 +1,31 @@
+<?php
+session_start();
+
+
+function isLogged(): bool
+{
+return isset($_SESSION['user']);
+}
+
+
+function checkLogin(PDO $pdo, $login, $password): bool
+{
+$stmt = $pdo->prepare('SELECT * FROM utilisateur WHERE login = ?');
+$stmt->execute([$login]);
+$user = $stmt->fetch();
+
+
+if ($user && password_verify($password, $user['password'])) {
+$_SESSION['user'] = $user['login'];
+return true;
+}
+return false;
+}
+
+
+function requireLogin() {
+if (!isLogged()) {
+header('Location: login.php');
+exit;
+}
+}