How to type decimal in PHP?

Question

I keep a field in the database that has a decimal type.

How can I type this?

public function getPrice() : decimal
{
    $temp = 123.45;
    return $temp;
}

It is not working, because return:

Fatal error: Uncaught TypeError: Return value of getPrice() must be an instance of decimal, float returned.

Anyway type decimal not exists.

I can use float for typping, but is this safe and good? The point is that with the float type there can be numerical errors (Float or decimal for prices?).

Answer 1

Don't listen to recommendation to use floats for money values. It's really dangerous, because floating numbers cannot guarantee the accurate comparison of non-integer values.

Good solution is to use integers with multipliers. The best solution is to create ValueObject which represents type money.