RE: [PHP-DEV] [RFC] Combined Comparison Operator

Davey Shafik <davey@php.net> 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 <simon@simon.geek.nz> 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