PeekAndPoke\Component\Psi\Psi\Num\IsPrime::__invoke()

Complexity

Conditions	5
Paths	5

Size

Total Lines	26
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	13
CRAP Score	5

Importance

Changes

0

<?php
    public function __invoke($input)
    {
        if (! is_int($input)) {
            return false;
        }

        $n = abs($input);

        if ($n < 2) {
            return false;
        }

        $sqrt = sqrt($n);

        $i = 2;

        while ($i <= $sqrt) {

            if ($n % $i === 0) {
                return false;
            }

            $i++;
        }

        return true;
    }