magic.php

<?php
class OverloadingClassFromHell
{
    private $data = array();

    public function __set($name, $value)
    {
        $this->data[$name] = $value;
    }

    public function __get($name)
    {
        if (array_key_exists($name, $this->data)) {
            return $this->data[$name];
        }
    }
}

class OverloadingClassFromHell2
{
    private $data = array();

    public function set($name, $value)
    {
        $this->data[$name] = $value;
    }

    public function get($name)
    {
        if (array_key_exists($name, $this->data)) {
            return $this->data[$name];
        }
    }
}

$research = new Research('Magic vs Normal getter');

$research->addTest(new Test('Magic', function() {
    $class = new OverloadingClassFromHell();
    $class->gebruikersnaam = 'hallo';
    echo $class->gebruikersnaam;
}));

$research->addTest(new Test('Getters and setters', function() {
    $class = new OverloadingClassFromHell2();
    $class->set('gebruikersnaam', 'hallo');
    echo $class->get('gebruikersnaam');
}));

$research->runTests();