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Subject: Re: AW: AW: [PHP-DEV] PDM Meeting Notes
From: ants.aasma@mig.ee (Ants Aasma)

Christian Schneider wrote:
>>     abstract static protected function __construct(CrazySettings $s, 
>> CrazyView $v);
<snip>
> Static doesn't really make sense as interfaces as object instance related.

Well actually the constructor is implicitly a static function too. The 
whole allowing/disallowing constructor in interfaces question is in 
principle exactly the same as allowing static methods in interfaces.

Anyway, I see only one use case for interface constructors:

interace IConstructableFromBananas {
	function __construct(Bananas $b);
}

function thingsThatUseBananasFactory($className) {
	$class = new ReflectionClass($className);
	if (!$class->implementsInterface("IConstructableFromBananas")) {
		trigger_error("$className doesn't implement 
IConstructableFromBananas", E_USER_ERROR);
	}
	return new $className(BananaFactory::getBananas());
}

I'm not so sure whether this is useful to anyone, but I don't see it 
hurting anyone either.

Ants