<?php
class Tier
{
 public Name;
 public Fellfarbe;
 public KrallenLaenge;
 public AnzahlBeine;

 public gibNamenAus()
 {
  echo "Ich heiße ".$this->name."\n";
 }
}
class Hund extends Tier
{
 public GefangeneKatzen;
 public function gibLaut()
 {
  echo "Wau\n";
 }
}
class Katze extends Tier {
 public GefangeneVoegel;
 public function gibLaut()
 {
  echo "Miau\n";
 }
}
class Amsel extends Tier
{
 public GefangeneInsekten;
 public function gibLaut()
 {
  echo "Piep";
 }
}