Description
Introduced in PHP 8.0, constructor property promotions1 add new syntatctic sugar to create value & data transfer objects.
Syntax
class Money
{
public Currency $currency;
public int $amount;
public function __construct(
Currency $currency,
int $amount,
) {
$this->currency = $currency;
$this->amount = $amount;
}
}can be replaced with
class Money
{
public function __construct(
public Currency $currency,
public int $amount,
) {}
}