Re: [RFC] Type hints (parameter and return value)

On Thu, Apr 17, 2008 at 10:01:13AM -0400, Sam Barrow wrote: > On Thu, 2008-04-17 at 14:52 +0200, Paul Biggar wrote: > > just the copy in the callee - I think this is a good idea). As an > > example, this will fail, which it shouldnt: function y (int $x) { > > assert (is_int($x); } y ("24"); > > The problem with this is that there's not much point in converting the > value. PHP will do that anyway, making this kind of pointless. If inside y() you have something like: for( $i = 0; $i < $x; $i++ ) you will end up converting $x to integer $x times ... which will eat CPU if $x is large -- I tried it. An: assert (is_int($x)) followed by: $x = (int)$x is the way to go. > This only serves to include an additional type juggling system into php, > which is very confusing. If you don't understand it: don't use it. -- Alain Williams Linux Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer. +44 (0) 787 668 0256 http://www.phcomp.co.uk/ Parliament Hill Computers Ltd. Registration Information: http://www.phcomp.co.uk/contact.php Chairman of UKUUG: http://www.ukuug.org/ #include <std_disclaimer.h>