複数ネームスペースを可能に

autoload.php

@@ -1,9 +1,11 @@
 <?php
 spl_autoload_register(function ($class): void {
-  $prefix = 'Site\\';
+  $prefixes = ['Site\\', 'Std\\'];
   $base = realpath(__DIR__.'/src');
+  $prefixExist = false;
 
-  if (strncmp($prefix, $class, strlen($prefix)) !== 0) return;
+  foreach ($prefixes as $prefix) { if (strncmp($prefix, $class, strlen($prefix)) === 0) $prefixExist = true; }
+  if (!$prefixExist) return;
   $ps = str_replace('\\', DIRECTORY_SEPARATOR, $class);
   $file = $base.DIRECTORY_SEPARATOR.$ps.'.php';
   if (file_exists($file)) require $file;