一个操作$_COOKIE的类。
在你的composer.json，require项添加：
"gemingcao/cookie-helper": "~1.0"
或者composer直接安装：
composer require gemingcao/cookie-helper:~1.0你可以全局实例化CookieHelper类：
$cookie = new \Gemingcao\Helper\CookieHelper();
// 检测cookie是否存在
$exists = $cookie->exists('my_key');
$exists = isset($cookie->my_key);
$exists = isset($cookie['my_key']);
// 获取一个cookie
$my_value = $cookie->get('my_key', 'default');
$my_value = $cookie->my_key;
$my_value = $cookie['my_key'];
// 设置一个cookie
$app->cookie->set('my_key', 'my_value');
$cookie->my_key = 'my_value';
$cookie['my_key'] = 'my_value';
// 合并cookie数组
$app->cookie->merge('my_key', ['first' => 'value']);
$cookie->merge('my_key', ['second' => ['a' => 'A']]);
$letter_a = $cookie['my_key']['second']['a']; // "A"
// 删除一个cookie
$cookie->delete('my_key');
unset($cookie->my_key);
unset($cookie['my_key']);
// 销毁cookie
$cookie::destroy();MIT