To set a cookie i.e. to create it and schedule for sending to the browser you need to create new
\yii\web\Cookie class instance and add it to response cookies collection:
$cookie = new Cookie([ 'name' => 'cookie_monster', 'value' => 'Me want cookie!', 'expire' => time() + 86400 * 365, ]); \Yii::$app->getResponse()->getCookies()->add($cookie);
In the above we're passing parameters to cookie class constructor. These basically the same as used with native PHP setcookie function:
name- name of the cookie.
value- value of the cookie. Make sure it's a string. Browsers typically aren't happy about binary data in cookies.
domain- domain you're setting the cookie for.
expire- unix timestamp indicating time when the cookie should be automatically deleted.
path- the path on the server in which the cookie will be available on.
true, cookie will be set only if HTTPS is used.