scope of private functions in extended php class

Question

<?php

class Foo {
    private function FooFunction(){

      }
}

class Bar extends Foo {
    public function BarFunction(){
           $this->FooFunction();
       }

}

$foo = new Foo();
$foo->FooFunction();  //Fatal error: Call to private method Foo::FooFunction()
                      //(Fair enough)

$bar = new Bar();
$bar->BarFunction();  //Fatal error: Call to private method Foo::FooFunction()
                      //from context 'Bar'

I'm having some difficulty understanding how to properly declare functions in a class which can then be used in an extension of that class

When I instantiate Foo I'd like FooFunction to remain private. However, I do need to be able to call it from within Bar.

Private only me, Protected my child can access, Public whole world can access. — Abhik Chakraborty, Mar 20 '14 at 18:48
From [here](http://stackoverflow.com/questions/4361553/php-public-private-protected): http://i.stack.imgur.com/SFysv.jpg — h2ooooooo, Mar 20 '14 at 18:58

omid · Answer 1 · 2014-03-20T19:11:23.640

2

change code as below:

<?php

class Foo {
    protected function FooFunction(){

      }
}

class Bar extends Foo {
    public function BarFunction(){
           $this->FooFunction();
       }

}

private methods not accessable in child class.
you need to use protected method type.

edited Mar 20 '14 at 19:11

answered Mar 20 '14 at 19:02

omid

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8
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2

You should probably also explain why. – echolocation Mar 20 '14 at 19:06

scope of private functions in extended php class

1 Answers1