Online PHP editor | refs for LCmNp

<?php class GreatestCommonDivisor { /** * Get the divisor of a given number. * * @param int $num * The number. * * @return int[] * The divisors of the number. */ private function factors(int $num): array { return array_filter( range(1, $num), function (int $i) use ($num) { return 0 === $num % $i; } ); } /** * Get the greatest common divisor. * * @param int ...$x * The numbers. * * @return int * The greatest common divisor. */ public function gcd(...$x): int { $x = array_map([$this, 'factors'], $x); $intersect = array_intersect(...$x); return end($intersect); } } trait gcdTrait { /** * Get the greatest common divisor. * * @param int ...$x * The first number. * * @return int * The greatest common divisor. */ function gcd(...$x): int { return (new GreatestCommonDivisor())->gcd(...$x); } } class customClass { use gcdTrait; } $foo = new customClass(); echo $foo->gcd(10, 20, 45);