Initial commit - Last War messaging system

includes/db.php

@@ -0,0 +1,35 @@
+<?php
+
+require_once __DIR__ . '/env_loader.php';
+
+function getDbConnection(): PDO
+{
+    static $pdo = null;
+
+    if ($pdo === null) {
+        $host = $_ENV['DB_HOST'] ?? getenv('DB_HOST') ?? 'localhost';
+        $port = $_ENV['DB_PORT'] ?? getenv('DB_PORT') ?? '3306';
+        $dbname = $_ENV['DB_NAME'] ?? getenv('DB_NAME') ?? 'bot';
+        $user = $_ENV['DB_USER'] ?? getenv('DB_USER') ?? 'root';
+        $pass = $_ENV['DB_PASS'] ?? getenv('DB_PASS') ?? '';
+
+        $dsn = "mysql:host={$host};port={$port};dbname={$dbname};charset=utf8mb4";
+
+        $options = [
+            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+            PDO::ATTR_EMULATE_PREPARES => false,
+        ];
+
+        $pdo = new PDO($dsn, $user, $pass, $options);
+        
+        // Configurar zona horaria
+        $timezone = $_ENV['TZ'] ?? getenv('TZ') ?? 'America/Mexico_City';
+        date_default_timezone_set($timezone);
+        
+        // Configurar timezone de MySQL
+        $pdo->exec("SET time_zone = '" . date('P') . "'");
+    }
+
+    return $pdo;
+}