In your documentation sent_timestamp will be received as UNIX timestamp, but I am unable to convert to MYSQL date format to save it in DB.
$timestamp = $_REQUEST[‘sent_timestamp’]; //1416004921458
echo $time_sent = date(‘Y-m-d H:i:s’, $timestamp); it returns as “1927-09-20 21:56:18”
Usually timestamp should be 10 digits why am I receiving 13 characters. Is there any thing I am missing?