Listing all objects of a certain class

Question

Ok my problem is as follows;

I have a class that describes a pet with this constructor;

public function __construct($name, $type, $age)

So what I want to do is make a number of pet objects, then I want to print all the attributes of all the objects of this class so that it looks something like this

What is the best way of going about it? I know how to iterate through an object's variables, but my main concern is how to iterate through all objects of a certain class. I would love it if someone could show me a code example of something, particularly if there is a way to do it without the use of arrays.

Any help is appreciated!

Answer 1

You could, in the class constructor, append $this to a static array that keeps all the elements of this type:

class Pet {
    public static $allPets = array();
    function __construct($name, $type, $age) {
        self::$allPets[] = $this;
        // more construction
    }
}

Your list of all Pet objects is now in Pet::$allPets.