Codeigniter表单验证great_than

Question

$this->form_validation->set_rules('start_price', 'Starting Price', 'required|decimal');
$this->form_validation->set_rules('price', 'Price', 'trim|required|decimal|greater_than[start_price]');

I have this code. Even i input a price greater than my start_price still the output is The Price field must contain a number greater than Starting Price.

Answer 1

The code looks fine to me unless there's any silly mistake. Try using less_than in Starting Price. Silly, I know, but you could give it a try.

Answer 2

Try to get value of the start price first, then validate.

$start_price = $_POST[start_price];
$this->form_validation->set_rules('start_price', 'Starting Price', 'required|decimal');
$this->form_validation->set_rules('price', 'Price', "trim|required|decimal|greater_than[$start_price]");