Diamond problem in PHP, showcasing the problem of multiple inheritance

multiple_inheritance_diamond.php

<?php

class Cat {
  public function roar() { /** Do Something **/ }
}

class Tiger extends Cat { 
  public function roar() { /** Do Something Different **/ }
}

class Lion extends Cat {
  public function roar() { /** Do Something More Different **/ }
}

class Liger extends Lion, Tiger {}


// Create a new Liger 
$liger = new Liger;

// Try to call the roar class
$liger->roar();