all user 6 month

add_action('wp_head',function (){
    foreach (get_users() as $user){
        update_user_option( $user, 'jpw_subscribe_status', 'ACTIVE' );
        update_user_option( $user, 'jpw_expired_date', date( 'Y-m-d H:i:s', strtotime( '+6 month' ) ) );
        update_user_option( $user, 'jpw_subs_type', 'trial' );
    }
});