When do/should I use __construct(), __get(), __set(), and __call() in PHP?

Question

A similar question discusses __construct, but I left it in my title for people searching who find this one.

Apparently, __get and __set take a parameter that is the

Answer 1

Redefining __get and __set can be especially useful in core classes. For example if you didn't want your config to be overwritten accidentally but still wanted to get data from it:

class Example
{
    private $config = array('password' => 'pAsSwOrD');
    public function __get($name)
    {
        return $this->config[$name];
    }
}