sailthru/Sailthru_Client.php
public function purchaseIncomplete($email, array $items, $message_id, array $options = [ ]) {
        return $this->purchase($email, $items, 1, $message_id, $options);
    }
public function purchaseIncomplete($email, array $items, $message_id, array $options = [ ]) {
        return $this->purchase($email, $items, 1, $message_id, $options);
    }
public function purchaseIncomplete ( $ email , array $ items , $ message_id , array $ options = [ ] ) { return $ this -> purchase ( $ email , $ items , 1 , $ message_id , $ options ) ; }
Make a purchase API call with incomplete flag
@link http://docs.sailthru.com/api/purchase
@return array API result
Make a purchase API call with incomplete flag