Overriding parent constructor by child class. PHP example

Inheritance in PHP allows overriding parent constructor by child class
For example:

Create parent class:

class Animal {
	public $name;
	public $health;
	public $alive;
	protected $power;//can used by childs

	public function __construct(string $name, int $health, int $power){
		$this->name = $name;
		$this->health = $health;
		$this->power = $power;
		$this->alive = true;
	}

	public function calcDamage(){
		return $this->power * (mt_rand(100, 300) / 200);
	}

	public function applyDamage(int $damage){
		$this->health -= $damage;//analog $this->health = $this->health - $damage;

		if($this->health <= 0){
			$this->health = 0;
			$this->alive = false;
		}
	}
}

Now let’s create a children’s class:

class Cat extends Animal{
	private $lifes;//new property

//override parent constructor
	public function __construct(string $name, int $health, int $power){
		parent::__construct($name, $health, $power);// get data from parent constructor
		$this->lifes = 9;//add our new properties
		$this->baseHealth = $health;
	}

	public function applyDamage(int $damage){
		parent::applyDamage($damage);
		
		if(!$this->alive && $this->lifes > 1){
			$this->lifes--;
			$this->alive = true;
			$this->health = $this->baseHealth;
		}
	}
}