How to make an array in $_COOKIE?

Question

PHP

I have a piece of PHP code

$_SESSION["logged_user"] = $users_log_res; //$users_log_res это массив

And it turns out that $_SESSION["logged_user"] is an array. How to do this on a cookie? I write

setcookie( "logged_user", $users_log_res, time()+604800 );

and it tells me that:
Warning: setcookie() expects parameter 2 to be string, array given in W:\domains\blog.loc\header.php on line 57
Should this array be converted into a string?

Answer 1

Cookies can only contain a string. If array then json_encode do