add auto load .env

php/auto/auto.php

@@ -1,4 +1,8 @@
 <?php
 
-include_once './connection.php';
-include_once './user.php';
+require_once $_SERVER['DOCUMENT_ROOT'] . '/vendor/autoload.php';
+$dotenv = Dotenv\Dotenv::createImmutable($_SERVER['DOCUMENT_ROOT']); // dir containing .env
+$dotenv->load();
+
+require_once $_SERVER['DOCUMENT_ROOT'] . '/php/auto/connection.php';
+require_once $_SERVER['DOCUMENT_ROOT'] . '/php/auto/user.php';

php/auto/connection.php

@@ -1,8 +1,8 @@
 <?php
-$servername = $_ENV['DB_SERVERNAME'];
-$username = $_ENV['DB_USERNAME'];
-$password = $_ENV['DB_PASS'];
-$dbname = $_ENV['DB_NAME'];
+$servername = getenv('DB_HOSTNAME');
+$username = getenv('DB_USERNAME');
+$password = getenv('DB_PASS');
+$dbname = getenv('DB_NAME');
 
 try {
   $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);

php/auto/user.php

@@ -1,6 +1,4 @@
 <?php
-include_once './connection.php';
-
 
 function hasPermission(int $userId, string $resourceName, string $actionName): bool
 {