Call on a class method dynamically inside a class, like variable function

[Mgccl]

variable functions ,like this

$somefunc = 'rand'
$somefunc(0,1);

output either 0 or 1

But it does not work on classes, like

class coolclass{
var $somefunc = 'rand';
}
$cool = new coolclass;
$cool->somefunc(0,1);

it tell you an error, say there is no such method defined. of course this can be simplely defeated in my next example:

class coolclass{
var $somefunc = '$this->got_called';
}
function call_func(){
$a = $this->somefunc;//$this->got_called;
$a();
}
function got_called(){
echo 'yeeeah';
}
$cool = new coolclass;
$cool->call_func();

This one uses a method, even it does not call on a function by using a variable function directly, it uses a variable to store the function name, so it is good too🙂 . But this time, it is calling a method in the class, and it does not work.
Any suggestions on how to call a class method like a variable function inside a class?

I saw one can do it outside a class.
http://www.java2s.com/Code/Php/Class/Callclassmethoddynamically.htm

[Shrike]

There are a few ways I can think of. If you know the name of the method:

$method = 'something';
$instance->$method();

Or if not, PHP5 has the get magic function which is called when an unknown property is called:

class Foo
{
  function __get( $var )
  {
    // Do something here
  }
}
$foo = new Foo;
$foo->bar; // Calls Foo::__get() with argument 'bar'