Phalcon\Http\Response\Cookies->send() cause "The argument is not initialized or iterable"

[Zaporozhec7]

I try use Phalcon\Http\Response\Cookies, separate from Phalcon\Http\Response. In my app "Cookies" object can contain cookie, or not. And i do not have way to check, is there exists at least one cookie in it, or not, before try to send it, because class do not provide method for this.
So if there are was not added at least one cookie, on calling send() method appear exception "The argument is not initialized or iterable".
I think that because _cookies variable in class defined without value and stay null if there are no cookie set (if i understand Zephir right). And we try to iterate through it in send() method when _cookies is null

There are few ways to fix that:

1. Make protected _cookies = []; instead protected _cookies;
2. Check is _cookies not empty/iterable before try iterate through it
3. Provide for Phalcon\Http\Response\Cookies class method that allow to check, is there are added cookie (something about isEmpty())

Expected behavior

When there are no cookie set, do nothing

How to reproduce

(new Phalcon\Http\Response\Cookies())->send();

Details

• Phalcon version: 3.1.2
• PHP Version: 7.1.4

[sergeyklay]

Fixed in the 3.2.x branch. Feel free to open a new issue if the problem appears again. Thank you for contributing.