需要一个正则表达式来接受大于0和逗号的数值

Question

i have to check a comma separated value in which i have to allow only numeric character greater than 0 and comma below is format that i required

• -1,2,3,567,76,67,20,10

and below is the error that should not be accept by the regex

1. 0,23,344 23,
2. 0,2323,85 34
3. 344,44,00
4. sdfs,34,34,

i have used the regex

this one accept all numeric character and comma but also accept 0

return ( ! preg_match("/^([0-9,])+$/i", $quantity)) ? FALSE : TRUE;

this one accept not accept 0 at any place

return ( ! preg_match("/^([1-9,])+$/i", $quantity)) ? FALSE : TRUE;

Answer 1

For the sake of good readable and maintainable code I'd rather stick to a validation function - something like this:

function validateCsv($input)
{
    foreach (str_getcsv($input) as $value) {
        if (!preg_match('#^[\d]+$#', $value)) {
            throw new \Exception('invalid CSV-value ' . $value);
        }
        if ($value <= 0) {
            throw new \Exception('invalid CSV-value ' . $value);
        }
    }
}