Мне тоже пришлось найти трудный путь. Это было проверено (с небольшими изменениями из моего исходного кода)
//## GoGrid PHP REST API Call
define('TOKEN','XXXXX-XXXXX-XXXXX-XXXXXX'); // found on the cdn admin My Settings
define('ACCOUNT_NUMBER','XXXX'); // found on the cdn admin Top Right corner
function purgeCacheFileFromCDN($urlToPurge) {
//## Build the request
$request_params = (object) array('MediaPath' => $urlToPurge, 'MediaType' => 8); // MediaType 8=small 3=large
$data = json_encode($request_params);
//## setup the connection and call.
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://api.edgecast.com/v2/mcc/customers/'.ACCOUNT_NUMBER.'/edge/purge');
curl_setopt($ch, CURLOPT_PORT , 443);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLINFO_HEADER_OUT, 1); // For debugging
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FORBID_REUSE, 1); // no caching
curl_setopt($ch, CURLOPT_FRESH_CONNECT, 1); // no caching
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT");
curl_setopt($ch, CURLOPT_POSTFIELDS,$data);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Authorization: tok:'.TOKEN, 'Content-Type: application/json','Accept: application/json', 'Content-length: '.strlen($data)));
$head = curl_exec($ch);
$httpCode = curl_getinfo($ch);
curl_close($ch);
//## check if error
if ($httpCode['http_code'] != 200) {
echo 'Error reported: '.print_r(array($head,$httpCode),1); // output it to stdout this will be emailed to me via cron capture.
}
}