note 126250 added to faq.using

What is the point of designating "protected" or "private" methods in a TRAIT? Referencing Example #6 Changing Method Visibility <?php trait HelloWorld { public function sayHello() { echo 'Hello World!'; } } // Change visibility of sayHello class MyClass1 { use HelloWorld { sayHello as protected; } } // Alias method with changed visibility // sayHello visibility not changed class MyClass2 { use HelloWorld { sayHello as private myPrivateHello; } } I don't understand the point of the "private" in the "using class" at all. And I extended the MyClass1, trying to use the 'protected' version and got the error about not being able to use a protected class when I instantiated the extending class. This looks like an example of " just because you can doesn't mean you should ...". ---- Server IP: 45.112.84.4 Probable Submitter: 45.112.85.242 (proxied: 97.82.59.26) ---- Manual Page -- https://php.net/manual/en/faq.using.php Edit -- https://main.php.net/note/edit/126250 Del: integrated -- https://main.php.net/note/delete/126250/integrated Del: useless -- https://main.php.net/note/delete/126250/useless Del: bad code -- https://main.php.net/note/delete/126250/bad+code Del: spam -- https://main.php.net/note/delete/126250/spam Del: non-english -- https://main.php.net/note/delete/126250/non-english Del: in docs -- https://main.php.net/note/delete/126250/in+docs Del: other reasons-- https://main.php.net/note/delete/126250 Reject -- https://main.php.net/note/reject/126250 Search -- https://main.php.net/manage/user-notes.php