[eluser]JoostV[/eluser]
By default, CI can not deal with arrays in $this->input and $this-=>validation. Could this be what is buggin you?
If so, the way I see you have three options:
- use $_POST['businessType'] to access your array of post values from checkboxes, instead of $this->input->post('businessType'). $_POST can handle arrays.
- use checkboxenames like businessType_1, businessType_2 and loop through those using $this->input or $this->validation. (not a very elegant solution, but it works)
- search the forums for a library that DOES allow CI to work with arrays in $this->input and $thjis->validation. I'm sure there are some out there.