On Sun, February 26, 2012 8:45 pm, Anthony Ferrara wrote:
>> Or operator-overlading to the rescue? :-)
>
> Not quite. Especially because with operator overloading done at this
> level (how it would be implemented in PHP) it's almost impossible to
> make it consistent:
>
> class string {
> public function overload+($mixed) {
> return $this->value + $mixed;
I think you meant '.' here instead of '+'
Otherwise, PHP type juggling will make it be 10 as well.
> }
> }
> class Integer {
> public function overload+($mixed) {
> return $this->value + $mixed;
> }
> }
>
> $int = new Integer(5);
> $string = new String("5");
>
> echo $int + $string; // 10
> echo $string + $int; // 55
>
> While I like the concept of overloading, I don't really think it's
> solvable in a consistent enough manner that it would work here.
That said, there is no inconsistency.
If what you want to do is overload + on strings to do concatenation,
then it's on you to typecast everything to (string) for it to make
sense.
Oh, and string is a reserved word, so this won't work as-is, though
that's obviously picuyane.
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