public function div(Decimal $b, $scale = null)
{
self::paramsValidation($b, $scale);
if ($b->isZero()) {
throw new \DomainException("Division by zero is not allowed.");
} elseif ($this->isZero() || $b->isInfinite()) {
return DecimalConstants::Zero();
} else {
if ($scale !== null) {
$divscale = $scale;
} else {
// $divscale is calculated in order to maintain a reasonable precision
$this_abs = $this->abs();
$b_abs = $b->abs();
$log10_result = self::innerLog10($this_abs->value, $this_abs->scale, 1) - self::innerLog10($b_abs->value, $b_abs->scale, 1);
$divscale = (int) max($this->scale + $b->scale, max(self::countSignificativeDigits($this, $this_abs), self::countSignificativeDigits($b, $b_abs)) - max(ceil($log10_result), 0), ceil(-$log10_result) + 1);
}
return self::fromString(bcdiv($this->value, $b->value, $divscale + 1), $divscale);
}
} /**
* Returns a new Money object that represents
* the divided value by the given factor
*
* @param numeric $divisor
* @param int $roundingMode
* @param int $precision
* @throws Exception\InvalidArgumentException If division by zero accured
* @return Money
*/
public function divide($divisor, $roundingMode = self::ROUND_HALF_UP, $precision = self::PRECISION_GAAP)
{
$this->assertRoundingMode($roundingMode);
$divisor = $this->castOperand($divisor);
$precision = $this->castPrecision($precision);
$innerPrecision = $this->getInnerPrecision();
if ($divisor->isZero($innerPrecision)) {
throw new Exception\InvalidArgumentException('Division by zero');
}
$amount = $this->amount->div($divisor, $innerPrecision + 1);
if (null === $roundingMode) {
$amount = $amount->round($precision);
} else {
$amount = Math::bcround($amount, $precision, $roundingMode);
}
return $this->newInstance($amount);
}
