README

Installation

composer require bag2/cookie

Motivation

We have some problems with HTTP Set-Cookie response header in PHP.

• PHP's setcookie() function started supporting 'SameSite' cookie attribute from 7.3.0
• Sending SameSite cookies under PHP 7.3.0 requires an unusual hack
• PSR-7 does not provide high-level functions for Cookies
• The setcookie() function is useless for the era of PSR-7

This package provides common features whether your project is PSR-7 based or vanilla PHP (direct call to setcookie() function).

Examples

Create Cookie Oven

Oven is an object that can hold multiple Set-Cookie entries. Use CookieOvenBuilder to create an Oven object. The value specified in the constructor or the "with" method builds the default value for the option added to the Set-Cookie.

<?php

use Bag2\Cookie\CookieOvenBuilder;

$now = \time();

// [Recomended] Create an Oven instance by CookieOvenBuilder
$cookie = (new CookieOvenBuilder)->withSameSite('Strict')->build();
$cookie->add('NameA', 'value 1', ['expires' => $now + 1200]);
$cookie->add('NameB', 'value 2', ['expires' => $now + 3600]);

// [Obsolete] Create an Oven instance by function
$cookie = Bag2\Cookie\oven(['secure' => true, 'httponly' => true, 'samesite' => 'Strict']);

Oven manages cookies by key-value. Please note that CookieOven can only have one cookie with the same name.

$default_options passed to the Oven constructor is combined with $option passed to the CookieOven::add() method.

The $options received in the 3rd argument is compatible with setcookie() function added in PHP 7.3. Pleese see PHP: setcookie - Manual. All option names are lowercase.

PSR-7

PSR-7 is a HTTP message interfaces defined by PHP-FIG.

$response = $cookie->appendTo($response, $now);

// var_dump($response->getHeader('Set-Cookie'));
// => [
//   'Name1=value; expires=Sunday, 12-Jan-2020 08:25:56 UTC; Max-Age=3600',
//   'Name2=value; expires=Sunday, 12-Jan-2020 08:25:56 UTC; Max-Age=3600',
// ]

PSR-7 HTTP message objects are immutable. If you are writing code on a PSR-7 compatible framework, you will probably just return this value.

Tips for unit testing: Oven::appendTo() and Oven::setTo() receive unixtime of the current time for SetCookie::compileHeaderLine(). The reason is that the current time affects the cookie output. The argument is optional, but if you want strict output value validation, inject the time externally.

PHP setcookie() wrapper

If your project allows you to call the setcookie(), header() functions directly, it is a kind of vanilla PHP.

Bag2\Cookie\emit($cookie);

Inside this function, the Emitter for the PHP version is selected, and the setcookie() function that matches the version specification is called.

Legacy style setcookie()

If you don't like the new style of setcookie() with associative arrays, use Bag2\Cookie\setcookie().

Bag2\Cookie\setcookie('Cookie', 'value', \time() + 256, '/', '', true, true, 'Lax');

Copyright

This package is licenced under Apache License 2.0.

Copyright 2020 Baguette HQ

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.