ReflectionFunctionAbstract::getTentativeReturnType called on reflection function

[web-fu]

From manual page: https://php.net/reflectionfunctionabstract.gettentativereturntype

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In the manual page there is an example of the function ::getTentativeReturnType called upon a reflection method.
There is no example with a standard function
Has it sense applying this concept to standard function?

[Girgias]

Sorry, I don't quite understand what your question is. Can you please clarify?

[web-fu]

In the page there is this example of usage

<?php

$method = new ReflectionMethod(\ArrayAccess::class, 'offsetGet');
var_dump($method->getTentativeReturnType());

This function is defined in ReflectionFunctionAbstract, so it can be called also for "normal" function

<?php

$method = new ReflectionFunction('date');
var_dump($method->getTentativeReturnType());

It is the intended usage?
Are there cases that "normal" function can have tentative return type?

This part of documentation is pretty obscure

[Girgias]

Ah, I don't think that normal functions can have a tentative return type, as this is only really an issue for methods of non-final classes. @kocsismate do you know why it was added to FunctionAbstract?

[kocsismate]

do you know why it was added to FunctionAbstract?

I think it was just an oversight :/

[web-fu]

do you know why it was added to FunctionAbstract?

I think it was just an oversight :/

Maybe it's "let's implement in there, just in case"