Add project files

inc/DB.php

@@ -0,0 +1,21 @@
+<?php
+class DB {
+  private static ?PDO $pdo = null;
+
+  public static function conn(): PDO {
+    if (self::$pdo) return self::$pdo;
+    $host = Config::get('DB_HOST', '127.0.0.1');
+    $port = Config::get('DB_PORT', '3306');
+    $db   = Config::get('DB_DATABASE', 'amnezia_panel');
+    $user = Config::get('DB_USERNAME', 'amnezia');
+    $pass = Config::get('DB_PASSWORD', '');
+    $dsn = sprintf('mysql:host=%s;port=%s;dbname=%s;charset=utf8mb4', $host, $port, $db);
+    $options = [
+      PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+      PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+      PDO::ATTR_EMULATE_PREPARES => false,
+    ];
+    self::$pdo = new PDO($dsn, $user, $pass, $options);
+    return self::$pdo;
+  }
+}