<?php
class Test {

    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }

}

class Testb extends Test {

    public function __construct($name) {
        parent::__construct($name);
    }

}

$a = new Test('John');
$b = new Testb('Batman');

echo $a->getName();
echo $b->getName();
?>