How to call grandparent method without getting E_STRICT error?

Question

Sometimes I need to execute grandparent method (that is, bypass the parent method), I know this is code smell, but sometimes I can\'t change the other classes (frameworks, l

Answer 1

You can use a separate internal method (e.g. _doStuff to complement doStuff) and call that directly from the grandchild, through the parent.

// Base class that everything inherits
class Grandpa  {
    protected function _doStuff() {
        // grandpa's logic
        echo 'grandpa ';
    }

    public function doStuff() {
        $this->_doStuff();
    }

}

class Papa extends Grandpa {
    public function doStuff() {
        parent::doStuff();
        echo 'papa ';
    }
}

class Kiddo extends Papa {
    public function doStuff() {
        // Calls _doStuff instead of doStuff
        parent::_doStuff();
        echo 'kiddo';
    }
}

$person = new Grandpa();
$person->doStuff();
echo "\n";
$person = new Papa();
$person->doStuff();
echo "\n";
$person = new Kiddo();
$person->doStuff();

shows

grandpa
grandpa papa
grandpa kiddo