title: Google App Engine PHP file permissions
body: <p>App Engine applications can be implemented using the PHP original runtime now. (see <a href="http://googlecloudplatform.blogspot.de/2013/05/app-engine-adds-php-support.html" rel="nofollow"><em>Get started with App Engine for PHP - scalable, secure and reliable</em> on Google Cloud Platform Blog (16 May 2013)</a>.</p>
  
  <p>It seems that the PHP process on <em>Google App Engine</em> does not have enough permissions to create folders. According to their <a href="https://developers.google.com/appengine/docs/php/config/php_ini" rel="nofollow">documentation</a>, the built-in stream handler <code>ftp()</code> <a href="https://developers.google.com/appengine/docs/php/runtime#Function-Support" rel="nofollow">is not supported</a> too.</p>
  
  <p>Is the GAE file system read-only? What possibilities do we have?</p>