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

What if by type hint a parameter, php automatically tries to convert the argument into that type and throws an exception ONLY if it couldn't be done? for example: function concat(string $a, string $b) { return $a.$b; } I can do: concat(1,'1'); concat(2.5,' pigs'); concat(new ConvertibleToStringObject, 15); But if I do: concat(new NonConvertibleToStringObject, 15); PHP throws an exception saying the function needs a string, but the parameter couldn't be converted... Can this make everybody happy? Cheers, Saulo Vallory On Wed, Jun 18, 2008 at 9:30 PM, Edward Z. Yang < edwardzyang@thewritingpot.com> wrote: > Fabrice VIGNALS wrote: > > In mathematic, equal meen the same value AND the same nature. > > The follow fact could be frustrating : > > Usually, context is good enough to disambiguate between the cases. The > most prevalent convention in programming languages is = is assignment, > and == is comparison (PHP adds === only because of its type-juggling > system). Other languages have = as comparison, and := as assignment. > Donald Knuth uses = as comparison, and a left arrow (<-) for assignment. > > -- > Edward Z. Yang GnuPG: 0x869C48DA > HTML Purifier <http://htmlpurifier.org> Anti-XSS Filter > [[ 3FA8 E9A9 7385 B691 A6FC B3CB A933 BE7D 869C 48DA ]] > > -- > PHP Internals - PHP Runtime Development Mailing List > To unsubscribe, visit: http://www.php.net/unsub.php > >