Serialized object singleton test (2)

test2.php

<?php

class Depedency
{
    public $value;
}

class A
{
    public $dependency;

    public function setDependency($dependency)
    {
        $this->dependency = $dependency;
    }

}

class B
{
    public $dependency;

    public function setDependency($dependency)
    {
        $this->dependency = $dependency;
    }

}

$saved = file_get_contents('saved.php');
list($a, $b, $d) = unserialize($saved);

$d->value = 20;
echo $a->dependency->value . PHP_EOL;
echo $b->dependency->value . PHP_EOL;

// 20
// 20