php - Create unset cookie button -

-

i have created cookie using php , need create button user can click log out.

this php code unset cookie: 

 unset($_cookie['access_token']);

but i'm quite stuck how make button functionality. can me it?

thanks lot

if(isset($_get['logout'])) {

unset($_cookie['access_token']);

header('location: /');

exit;

}

on site

<a href="?logout">logout</a>


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