Codeigniter use form validation for variable

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?

Where did you read it? What's the point of loading a form validation library and use it with another meaning? why not using a dedicate library/helper/function/piece of code? — Damien Pirsy
– Damien Pirsy, Commented Jan 24, 2012 at 11:08

Qantas 94 Heavy · Accepted Answer · 2014-09-15 12:24:41Z

2

What you are looking for are the callbacks of the Form Validation Class in CodeIgniter - read the user guide for an in-depth explanation.

edited Sep 15, 2014 at 12:24

Qantas 94 Heavy

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answered Jan 24, 2012 at 13:14

Ruben Müller

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Comments

Colin Brock · Accepted Answer · 2012-01-24 14:35:46Z

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";

edited Jan 24, 2012 at 14:35

Colin Brock

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answered Jan 24, 2012 at 11:25

caspersky 48

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Comments

Ahsaan Yousuf · Accepted Answer · 2015-09-16 15:48:55Z

1

Yes you can via set_data() method, Here you go.

$this->form_validation->set_data(array(
        'cartId'    =>  $cartId
));

$this->form_validation->set_rules('cartId', 'Card ID', 'trim|required|is_natural_no_zero');

if ($this->form_validation->run() == FALSE) {
    echo 'Invalid: ' . validation_errors();
} else {
    echo 'Valid';
}

answered Sep 16, 2015 at 15:48

Ahsaan Yousuf

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