On 12.10.2014 12:10, Nikita Popov wrote:
> On Sun, Oct 12, 2014 at 10:37 AM, Robert Stoll <p...@tutteli.ch> wrote:
>
>> Hey,
>>
>>
>>
>> I just stumbled over a method call of a non-static method with self and
>> was asking myself again, why does PHP support
>> this behaviour. An example to outline what I am writing of:
>>
>>
>>
>> class A{
>>
>> function foo(){
>>
>> self::bar();
>>
>> }
>>
>> function bar(){}
>>
>> }
>>
>>
>>
>> IMO it should not be allowed to call non-static methods with self or
>> static. Sure, it is just a small detail but for
>> someone who starts learning PHP it is an unnecessary supplement.
>>
>> Maybe it is too drastic to disallow it in PHP 7 but yeah. I would like to
>> know what you think about it and if someone
>> has a good reason why it is allowed nowadays then please help me out.
>>
> There's a common misconception that ::foo() denotes a static method call in
> PHP. What it actually does is a *scoped* call (which is why :: is called
> the "scope resolution operator" and not the "static access operator").
>
> What :: essentially does is give you the ability to call the implementation
> of a method in a particular class. A common application is the use of
> parent::foo() which will not call your implementation of foo(), but the one
> found in the parent class. Similarly you can use A::foo() to target a
> particular class that is even further up in the inheritance hierarchy
> (like, the grandparent-class). You can also call call a class that is
> completely outside your inheritance hierarchy, but that's deprecated since
> PHP 5.6 and will hopefully be removed in PHP 7.
Theoretically spoken, the "::" operator would be changeable to "static
access operator".
Would that change any behavior outside of calling non static method
statically?
Would that open the possibility to register static methods in another
function table as object methods?
So e.g. it would be possible to have "public static __call()" instead of
"public static __callStatic()".
> Nikita
Marc
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