Ferno\Loco\Multiplier::__construct PHP Méthode

    public function __construct($lower, $upper)
    {
        if (!is_int($lower)) {
            throw new Exception("Not an integer: " . var_export($lower, true));
        }
        if (!is_int($upper) && $upper !== null) {
            throw new Exception("Not an integer or null: " . var_export($upper, true));
        }
        if ($upper !== null && !($lower <= $upper)) {
            throw new Exception("Upper: " . var_export($upper, true) . " is less than lower: " . var_export($lower, true));
        }
        $this->lower = $lower;
        $this->upper = $upper;
    }