[RFC] Combined Comparison Operator

Hey folks, I've written up an RFC/Patch to gauge interest and get feedback on the addition of a combined comparison (aka: spaceship) operator. You can see the RFC at: https://wiki.php.net/rfc/combined-comparison-operator 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. Code available here (against 5.6): https://github.com/dshafik/php-src/compare/add-spaceship-operator I'd love to get this into 5.6, not sure if we hit feature freeze yet. Also, not sure if it needs 2/3 majority, but assumed so as pow did? Thoughts? If there is interest, I'll start adding tests. They should be fairly trivial. - Davey