codeigniter validate numbers and decimals

Question

Is it possible to validate both numbers and decimal values using codeigniter validations class?

Coz i need to give the user to enter either a number or a decimal value. Eg: 10 or 1.5 or 30.45

In codeigniter validation class it allows to either validate a number or decimal separately.

Can someone tell me how can this validation be done in codeigniter?

Tpojka · Accepted Answer · 2020-08-11 13:49:29Z

2

<?php

class Form extends CI_Controller
{
    public function index()
    {
        $this->load->helper(array('form', 'url'));

        $this->load->library('form_validation');

        $this->form_validation->set_rules('weight', 'Weight', 'required|trim|callback_weight_check');

        if ($this->form_validation->run() == FALSE) {
            $this->load->view('myform');
        } else {
            $this->load->view('formsuccess');
        }
    }

    public function weight_check($val)
    {
        if (!is_int($val) && !is_float($val)) {
            $this->form_validation->set_message('weight_check', 'The {field} field must be number or decimal.');
            return FALSE;
        } else {
            return TRUE;
        }
    }
}

edited Aug 11, 2020 at 13:49

answered Aug 12, 2017 at 19:18

Tpojka

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6 Comments

Md Ashraful Islam Over a year ago

Your condition is wrong. it should be !is_int($val) && !is_float($val). If you don't change it all floats will fail

Tpojka Over a year ago

@MdAshrafulIslam It is fixed now. Thank you.

Md Ashraful Islam Over a year ago

@Tpjoka Your condition is still wrong. Because I have checked it again. Sorry my last condition was wrong too. Because both !is_int and !is_float fail when argument is "10.00". is_float works when argument is a number. But in this case, the argument is a string. It fails on most case. Use !filter_var($val, FILTER_VALIDATE_FLOAT) istead. No need to do that for integer too because it automatically validates integers.

Md Ashraful Islam Over a year ago

No. Check with value "10.00" it fails.

Tpojka Over a year ago

Because it is string. Question required int or float condition. However, this is 3 years old answer and with your help it is fixed now. Thanks.

|

Jaime · Accepted Answer · 2017-11-16 20:05:06Z

0

You can try building your own callback or use the regex_match rule to do it like this:

$this->form_validation->set_rules('cost', 'Cost', array('trim','required','min_length[1]','regex_match[/(^\d+|^\d+[.]\d+)+$/]'));

You have to use the array way to set the rules because the regex rule uses a pipe ( | ).

answered Nov 16, 2017 at 20:05

Jaime

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