src/Parser/IntervalParser.php
private function isInt(string $value): bool
    {
        return \is_numeric($value) && (float)\round($value, 0) === (float)$value;
    }
private function isInt(string $value): bool
    {
        return \is_numeric($value) && (float)\round($value, 0) === (float)$value;
    }
private function isInt ( string $ value ) : bool { return \ is_numeric ( $ value ) && ( float ) \ round ( $ value , 0 ) === ( float ) $ value ; }
Returns true if the value is an integer
@param $value
@return bool
Returns true if the value is an integer