Found this while reading trough the code:
static public function prepareSingleItem( $data_item, $convert_type ) {
$collection_item = new BackendlessCollection( $data_item );
switch ( $convert_type ) {
case "std_class": return $collection_item->convertToStdClasses();
case "user_calss": return $collection_item->convertToUserClasses();
case "array": return $collection_item->convertToArray();
}
}
user_calss should be user_class
EDIT: This is from the PHP SDK that I downloaded via the download link on your website.