PHP OOP final classes and methods

testFinalClasses.php

<?php 
echo "<p>Test final</p>";

// class couldn't be used like a parent class
final class A{
  public function __construct(){
    echo __CLASS__."<br>";
  }
}

class C{
  // method couldn't be overwritten
  final public function draw(){
    echo __CLASS__.' draw<br>';
  }
}

// this won't work, you can't use finel classes as super classes
// class B extends A{
class B extends C{
  public function __construct(){
    echo __CLASS__."<br>";
  }

  // impossible overwrite final method
  // public function draw(){
  //   echo __CLASS__.' draw<br>';
  // }
}

$obj=new B();
$obj->draw();


?>