Adds ConfigLoader core class

app/core/ConfigLoader.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Core;
+
+class ConfigLoader
+{
+    /**
+     * Load configuration array from a set of possible file locations.
+     *
+     * @param string[] $locations
+     * @return array
+     */
+    public static function loadConfig(array $locations): array
+    {
+        $configFile = null;
+        foreach ($locations as $location) {
+            if (file_exists($location)) {
+                $configFile = $location;
+                break;
+            }
+        }
+        if (!$configFile) {
+            die('Config file not found');
+        }
+        return require $configFile;
+    }
+}