Magic Set and Get

class test {

    private $options = array(
        'var1' => '1',
        'var2' => '2',
    );

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

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

}

$test = new test;
$test->var1 = 1;