Re: Type hinting

Hi, On Thu, May 27, 2010 at 09:45, Arvids Godjuks <arvids.godjuks@gmail.com> wrote: > Just wanted to remind everyone that option #3 proposed earlier doesn't > include auto-casting when data loss is happening. > > That means: > > function hintMe(int $number) { > } > > hintMe(1); > hintMe("1"); > hintMe("1.0"); > hintMe(array(1)); - Error or notice, no array -> int conversions > hintMe(1.25); - Error or notice because data is lost. > hintMe("1 abc"); - Error or notice because data is lost. > > As I understood the author. So basically we are free of type juggling > in cases when strait forward conversion can be done. like "1" => 1 > (int), "20.2" => 20.2 (float). > We receive a warning or  a fatal error when we pass something that > can't be converted straight forward like 1.01 => 1 (int) or "1 abs" => > 1 (int), array(20) => 20.0 (float) and so on. The basic concept as I > understood is: Convert if there is no data loss, else give an error. > > So please, stop discussing this, it really annoys to read the same > thing over and over again. > > As I said earlier, I'm against strict type checking and there is a > good reason for that: As someone already mentioned, in PHP we are > dealing with strings 90% of the time - GET, POST, data from databases > or any other external source. We get integers and floats only when > stuff is initialized or calculated inside the script. For the external > data we rely on type auto conversion with some additional checks if > needed (I don't think you will ever check the field type when > selecting from database, because I know it's type in schema - you just > use it and rely on automatic conversion). 90% of your function calls are involving values with random scalar types? really ? Personally, I think it would be extremely bad code, but actually, I doubt it's even true. > > So really - can we stop arguing, polish the rules and get to the > implementation? :) > > -- > PHP Internals - PHP Runtime Development Mailing List > To unsubscribe, visit: http://www.php.net/unsub.php > > -- Etienne Kneuss http://www.colder.ch