Davey Shafik <[email protected]> wrote:
> This adds a new operator "(expr) <=> (expr)" that returns 0 if both
> operands are equal, 1 if the left is greater, and -1 if the right is
> greater.
>
> It works with all types (just as well as <, <=, >=, > work) and is great
> for usort() callbacks for example.
>
Why not using $a - $b instead of $a <=> $b?
Simon J Welsh <[email protected]> wrote:
> The only real case I see for this is to save some boilerplate when
> dealing with arrays. Strings have strcmp(), numbers have subtraction
> And when you’re sorting objects, you probably want to be doing
> the comparison on some string/numeric property.
>
Agreed! It would make more sense to write a comparison function for arrays/objects.
Best regards
Christian