Nice overkill.

Nice overkill. You reimplemented sth already done in pure PHP:

<?php

class class1
{
private $x;
private $y;

function __set($propiedad,$valor)
{
$this->$propiedad=$valor;
}
function __get($propiedad)
{
return $this->$propiedad;
}
}

$object1=new class1();
$object1->x=10;
$object1->y=20;

$object2=new class1();
$object2->x=10;
$object2->y=20;

// returns true
var_dump($object1 == $object2);

$object3=new class1();
$object3->x=10;
$object3->y=10;

// returns false
var_dump($object1 == $object3);

That's already in PHP but you can not use var_dump to compare objects and get a result and assign it to a variable, there is not internally in PHP to compare objects because if I do this:

if($object1 == $object3)
echo "notequals";
else
echo "EQUALS";

It will always show "Equals". But if you use the class you'll receive false in this case.

I'm afraid I don't understand you.

PHP has already built-in functionality for comparing objects (it's been greatly improved in PHP5):
php.net/manual/en/language.oop5.obj ...

If you want to assign the boolean value to the variable then do sth like this:

$areObjectsEqual = ($object1 == $object2); // parethesis are optional here

BTW, you have error in your code, it should look like this:

if($object1 == $object3)
echo "EQUALS";
else
echo "not equals";

(you echo'ed "not equals" in case of ==).

You are right, I was wrong.