set_value with get

I would recommend passing your GET data to the form validation library with the set_data() method (or not using GET with form data). See https://codeigniter.com/user_guide/libra...-than-post

However, I believe the following might be the CI3 equivalent of your function:

PHP Code:

function set_value($field = '', $default = '')
{
    $CI =& get_instance();

    $value = (isset($CI->form_validation) && is_object($CI->form_validation) && $CI->form_validation->has_rule($field))
        ? $CI->form_validation->set_value($field, $default)
        : $CI->input->post($field, FALSE);

    isset($value) OR $value = ($CI->input->get($field) === null ? $default : $CI->input->get($field));
    return ($html_escape) ? html_escape($value) : $value;
} 


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