gistfile1.aw

<?php
$image = file_get_contents($path . '/' . $filename);
// wait until the file is loaded into memory
$fp = fsockopen('api.flickr.com', 80, $errno, $errstr, 30));
// wait until the DNS is resolved and the flickr server acknowledges the connection
// ...
fwrite($fp, $image);
// wait until the body is sent to flickr and the flickr server acknowledges the reception
fclose($fp);