Dimtrovich\Validation\Rules\Cidr::check()

Complexity

Conditions	5
Paths	5

Size

Total Lines	24
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	5

Importance

Changes	1
Bugs	0	Features	0

<?php
    public function check($value): bool
    {
        // A CIDR should consist of an IP part and a mask bit number delimited by a `/`

        // split by the slash that should be there
        $parts = explode('/', $value, 2);
        // we should have 2 parts (the ip and mask)
        if (count($parts) !== 2) {
            return false;
        }

        // validate the ip part
        if (filter_var($parts[0], FILTER_VALIDATE_IP) === false) {
            return false;
        }

        // check the mask part
        // first of all, this should be an integer
        if (filter_var($parts[1], FILTER_VALIDATE_INT) === false) {
            return false;
        }

        // and it should be between 0 and 32 inclusive
        return ! ($parts[1] < 0 || $parts[1] > 32);
    }