Attaching users id to my url structure

[eluser]CroNiX[/eluser]
You didn't provide enough info to adequately answer. You should post your whole controller. Your route doesn't look good at all from what I can tell. Whatever appears as the 2nd segment in the request, after "profile" will be sent to a CONTROLLER of the same name of that 2nd segment. I don't think that's what you're intending.

If the request was http://yoursite.com/profile/account/24
Your route is saying "send "id_24" as the first parameter to the account controller", so there must be a controller named "account" for that to work. I think you have an account method in your profile controller but hard to know with only one method provided.

If what I said is true, then your route should be:

Code:

$route['profile/([a-z]+)/(\d+)'] = "profile/$1/id_$2";

And your ID will be sent as segment(3) to the account method of the profile controller, not segment(4).