bp_member_switching_set_olduser_cookie( int $old_user_id, bool $pop = false, string $token = '' )

function bp_member_switching_set_olduser_cookie( $old_user_id, $pop = false, $token = '' ) {
	$secure_auth_cookie    = BP_Core_Members_Switching::secure_auth_cookie();
	$secure_olduser_cookie = BP_Core_Members_Switching::secure_olduser_cookie();
	$expiration            = time() + 172800; // 48 hours
	$auth_cookie           = bp_member_switching_get_auth_cookie();
	$olduser_cookie        = wp_generate_auth_cookie( $old_user_id, $expiration, 'logged_in', $token );

	if ( $secure_auth_cookie ) {
		$auth_cookie_name = BP_MEMBER_SWITCHING_SECURE_COOKIE;
		$scheme           = 'secure_auth';
	} else {
		$auth_cookie_name = BP_MEMBER_SWITCHING_COOKIE;
		$scheme           = 'auth';
	}

	if ( $pop ) {
		array_pop( $auth_cookie );
	} else {
		array_push( $auth_cookie, wp_generate_auth_cookie( $old_user_id, $expiration, $scheme, $token ) );
	}

	$auth_cookie = json_encode( $auth_cookie );

	/** This filter is documented in wp-includes/pluggable.php */
	if ( ! apply_filters( 'send_auth_cookies', true ) ) {
		return;
	}

	setcookie( $auth_cookie_name, $auth_cookie, $expiration, SITECOOKIEPATH, COOKIE_DOMAIN, $secure_auth_cookie, true );
	setcookie( BP_MEMBER_SWITCHING_OLDUSER_COOKIE, $olduser_cookie, $expiration, COOKIEPATH, COOKIE_DOMAIN, $secure_olduser_cookie, true );
}