On Thu, Dec 17, 2009 at 7:21 AM, Raymond Irving <xwis...@yahoo.com> wrote:
> Hello,
>
> Is there a way to represent numeric values as fixed point decimals in PHP? If 
> not, why was this datatype not added?
>
> I think is very important to have fixed point decimals when working with 
> money values. This would make it much easy than having to use the BCMath 
> functions.
>
> If PHP had support for operator overloading then we could have easily 
> implemented this datatype as a class:
>
> $a = new FixPoint(34.56, 2);
> $b = new FixPoint(34.55, 2);
>
> $c = $a-$b;
> echo ($c);
>
> $c+= 3;
> echo $c;

A lack of operator overloading wouldn't stop me if I really needed
such a datatype.  Besides, I'd be willing to bet a class (or several)
have already been made.

There is also a problem with your example usage of FixPoint.  By
initializing the FixPoint with a float you are still at risk for
rounding errors.  It would be better to initialize a FixPoint from
integers or a string if accuracy is truly paramount.

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