Add project files

inc/Config.php

@@ -0,0 +1,28 @@
+<?php
+class Config {
+  protected static array $env = [];
+
+  public static function load(string $path): void {
+    if (!file_exists($path)) {
+      // allow running with only environment variables exported
+      return;
+    }
+    $lines = file($path, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    foreach ($lines as $line) {
+      if (str_starts_with(trim($line), '#')) continue;
+      $parts = explode('=', $line, 2);
+      if (count($parts) !== 2) continue;
+      $key = trim($parts[0]);
+      $value = trim($parts[1]);
+      $value = trim($value, "\"' ");
+      self::$env[$key] = $value;
+      @putenv($key . '=' . $value);
+    }
+  }
+
+  public static function get(string $key, $default = null) {
+    $env = getenv($key);
+    if ($env !== false && $env !== null) return $env;
+    return self::$env[$key] ?? $default;
+  }
+}