Initial commit: struttura base Diplomacy Web App con header/footer e auth

init.php

@@ -0,0 +1,25 @@
+<?php
+require_once __DIR__ . '/config.php';
+session_start();
+
+function getPDO(){
+    static $pdo = null;
+    if ($pdo === null) {
+        $dsn = "mysql:host=".DB_HOST.";dbname=".DB_NAME.";charset=utf8mb4";
+        $pdo = new PDO($dsn, DB_USER, DB_PASS, [
+            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+        ]);
+    }
+    return $pdo;
+}
+
+function is_logged_in(){
+    return !empty($_SESSION['user_id']);
+}
+
+function current_user(){
+    if (!is_logged_in()) return null;
+    return ['id'=>$_SESSION['user_id'], 'email'=>$_SESSION['user_email']];
+}
+