Download Container Data via PHP to local Server

Hi,

we are using a little sync script via php, which allows us to store all data from a FileMaker DB into our internal MySQL-Database. 
The only problem iam unable to solve is how to download images from container fields and store them local on our web server. 

I tried something like:
 

foreach($recordsPersons as $recordPersonsData) {

          //saving images to /srv/www/htdocs/
          $url_orig = urlencode($recordPersonsData->getField('FotoDatei'));

          // Search for the extension of the file 
          $url = substr($url_orig, 0, strpos($url_orig, "?")); 
          $url = substr($url_orig, strrpos($url_orig, ".") + 1); 

          // Send the correct Content-Type header 
          if($url == "jpg"){ 
              header('Content-type: image/jpeg'); 
          } else if($url == "gif"){ 
              header('Content-type: image/gif'); 
          } else{ 
              header('Content-type: application/octet-stream'); 
          } 

          // save file local.
          file_put_contents('/srv/www/htdocs/testfilepicture.jpg', $fm->getContainerData($url_orig));
}

I was using this reference: http://blog.myfmbutler.com/?p=104

This Code-Snipped works well, but only writes "getContainerData() does not support remote containers" into testfilepicture.jpg..

We are using FileMaker Server 14.

Any Ideas?

Thanks in advance and Cheers

Edited January 10, 20178 yr by Marcwa19197