cscg25 continues

cscg25/web/canteenfood/challenge/Database.php

@@ -0,0 +1,21 @@
+<?php
+class Database {
+
+    private static $db;
+    private $connection;
+
+    private function __construct() {
+        $this->connection = new MySQLi('127.0.0.1', $_SERVER['DB_USER'], $_SERVER['DB_PASS'], $_SERVER['DB_NAME']);
+    }
+
+    function __destruct() {
+        $this->connection->close();
+    }
+
+    public static function getConnection() {
+        if (self::$db == null) {
+            self::$db = new Database();
+        }
+        return self::$db->connection;
+    }
+}