It actually hasn't been decided upon yet. Zeev
At 23:37 07/12/2001, Chris Newbill wrote: >Zend Engine 2 will have multiple-inheritance among other nice toys. >No I don't know when it will be part of PHP) > >There is a mailing list for the engine, I just don't remember what it >is. > >-Chris > >-----Original Message----- >From: Matthew J Gray [mailto:[EMAIL PROTECTED]] >Sent: Friday, December 07, 2001 2:07 PM >To: [EMAIL PROTECTED] >Subject: [PHP-DEV] multiple inheritance ext > >Hello, > >Where I work, there are 4+ php applications currently being developed >by 4 different programmers. In order to try to save code, we use >libraries of php code, and to make a long story short-- it would be >very helpful(and necessary in one case) if we had multilpe >inheritance. > >In order to sort of solve this problem, I've written an extension that >introduces the functions multi_extend() and bind() to php. > >multi_extend() takes a variable number of class names(>=2) as >arugments. The first given class name then becomes a sub class of >each successive argument. The order in which the parent classes are >given matters(in case of name conflicts in the parent classes). As >you may have already guessed, the extension just merges the hash >tables of class entries as >necessary. > >bind() takes the name of a class and the name of a function and >"binds" the function to the given class. This is useful to us when >the interface class of a library is a subclass of another class in the >library. > >bind() doesn't quite work properly, but multi_extend does and I plan >on adding it to the machines in our test environment. Long term, >however, it would be nice if this sort of multiple inheritance >functionality was part of php so it could be better maintained and >developed in more competent hands. > >I am wondering: >1) Are we alone in wanting this sort of functionality? Would anybody >else find this useful? >2) Could it be better implemented in php using keywords(extends taking >a list of parent classes) and operators(::) ? >3) Why overloaded classes? It doesn't seem very straight forward from >a usuability standpoint(maybe I am biased since I has such bad >experience getting __sleep and __awake to work and would rather never >use a __* method again). > >I realize the reasons for having this may be a little hard to follow, >so I've attatched some examples. > >Thanks, >Matt > > >-- >PHP Development Mailing List <http://www.php.net/> >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] >To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP Development Mailing List <http://www.php.net/> To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
