On 03/10/2014 18:57, Ingwie Phoenix wrote:
C++ does not use a function keyword by itself, and even lesser visibility keywords as PHP does.
There have been a couple of comparisons to other languages brought up, but I find them unconvincing.
Most languages have some keyword for introducing methods: "def" in Ruby; "sub" in Perl (or "method" when using some of the OO helper extensions such as MooseX::Declare); "defun" in Common Lisp; "procedure" (or "function") in Pascal; etc
In C-based languages including C++ and Java, the return type of a function is a compulsory part of the function definition, so a definition never begins simply "foo() { ... }". This gives the code structure a very different feel to loosely typed languages.
ECMAScript 6 is an interesting exception which someone mentioned. But then, ECMAScript 6 is quite a strange language, really - it grafts a "class" concept onto a prototype-based type system, and includes a whole set of different sub-routine declarations to overcome limitations in earlier versions of the language, as summarised here: http://www.2ality.com/2013/08/es6-callables.html
Now, obviously, PHP doesn't have to follow like a sheep wherever other languages go, but if I read a line in the change log for PHP 7 of "function keyword is now optional for methods", my reaction would be a bemused "why?", followed by a mental note to require it in any coding standards I have influence over.
-- Rowan Collins [IMSoP] -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
