PHP setcookie “SameSite=Strict”?

You can use the $options array to set the samesite value, for example:

setcookie($name, $value, [
‘expires’ => time() + 86400,
‘path’ => ‘/’,
‘domain’ => ‘domain.com’,
‘secure’ => true,
‘httponly’ => true,
‘samesite’ => ‘None’,
]);

The value of the samesite element should be either None, Lax or Strict.