Respect\Validation\Rules\PrimeNumber::isValid()

Complexity

Conditions	7
Paths	5

Size

Total Lines	17
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	9
CRAP Score	7

Importance

Changes

0

<?php
    public function isValid($input): bool
    {
        if (!is_numeric($input) || $input <= 1) {
            return false;
        }

        if (2 != $input && 0 == ($input % 2)) {
            return false;
        }

        for ($i = 3; $i <= ceil(sqrt((float) $input)); $i += 2) {
            if (0 == ($input % $i)) {
                return false;
            }
        }

        return true;
    }