How to add a yes/no option for individual users?

[walkman]

I have added the column by running this query:

PHP Code:

ALTER TABLE `mybb_usergroups` ADD `canviewpage_contact` INT(1) NOT NULL DEFAULT '0';

---

And the option is added at the users but it won''t save when I check the box. Also, I am not sure what array to use for the users when calling the user in my script.