Question

I’ve read somewhere that is possible to use Codeigniter’s Form Validation also for my own variables and not only for form’s inputs.

For example I’d like to validate a url to say if it is valid but not retrieving it using POST or GET from a form.

Do you know how or have a link?

Answer 1

For PHP5 above version,you can do this

function validdate_urls($str) {

    if(!filter_var($str, FILTER_VALIDATE_URL))
    {
        $this->validation->set_message('validate_urls', 'URL Invalid');
        return 0;
    }else {
        return TRUE;
    }

} 

And call it in your validation rules :-

$rules['link'] = "callback_validate_urls";