CodeIgniter 2.0 - validating arrays

Question

I\'m having some problems converting a piece of form validation code to CI 2.0. I\'m trying to validate an array of checkboxes but for some reason validation fails to run th

Answer 1

An array must be passed to your set_rules call suffixed with opening / closing square brackets, like so:

$this->form_validation->set_rules('checkboxes[]', 'My Checkboxes', 'required');

There are more details in the CI user guide - https://www.codeigniter.com/user_guide/libraries/form_validation.html#using-arrays-as-field-names

To handle the check for your checkbox values to be one of several values, you would need to create a custom callback function - https://www.codeigniter.com/user_guide/libraries/form_validation.html#callbacks-your-own-validation-methods