Database conn, users in progress

db.php

@@ -0,0 +1,22 @@
+<?php
+function getConnection() {
+    $host = getenv('DB_HOST') ?: 'localhost';
+    $db   = getenv('DB_NAME') ?: 'your_db_name';
+    $user = getenv('DB_USER') ?: 'your_username';
+    $pass = getenv('DB_PASS') ?: 'your_password';
+    $charset = 'utf8mb4';
+
+    $dsn = "mysql:host=$host;dbname=$db;charset=$charset";
+    $options = [
+        PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
+        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+        PDO::ATTR_EMULATE_PREPARES   => false,
+    ];
+
+    try {
+        return new PDO($dsn, $user, $pass, $options);
+    } catch (\PDOException $e) {
+        die("Database connection failed: " . $e->getMessage());
+    }
+}
+?>