Passing variables to custom validation callbacks

[eluser]captainbeef[/eluser]
Hi,
I was looking around for advice on exactly the same scenario. So thanks for the advice.

I just thought I'd note that any vars specifically passed into the custom validation function are additional to the variable being validated. So, for validating $username:

Code:

$rules['username'] = "required|callback_check_username[{$id}]";
.
.
function check_username($username, $id){
    
}

cheers