Best way to check for positive integer (PHP)?

Question

I need to check for a form input value to be a positive integer (not just an integer), and I noticed another snippet using the code below:

$i = $user_input_v         


        

Answer 1

Laravel 4.2 Validation rule for positive number

It takes only positive numbers including float values.

public static $rules = array(
    'field_name' => 'required|regex:/^\d*\.?\d*$/'
);

e.g:20,2.6,06