通过__get（）魔术方法访问属性/方法

Question

how can i access the second property or method in this statement

$this->test->hello();

In my __get() I can only figure out how to figure out what the test property is. I want to be also be able to capture the 'hello' method call. and do some dynamic things with it.

So in short if I type

$this->test->hello()

I want to echo each segment

echo $propert // test
echo $method //hello

The issue is that my test is being used to instantiate a new class object from an outside class. The method hello belongs to the test class object.

I want to capture the method within my __get().

How can i do this?

EDIT:

public function __get($name)
        {
            if ($name == 'system' || $name == 'sys') {

                $_class = 'System_Helper';

            } else {

                foreach (get_object_vars($this) as $_property => $_value) {

                    if ($name == $_property)
                        $_class = $name;
                }
            }

            $classname = '\\System\\' . ucfirst($_class);
            $this->$_class = new $classname();

            //$rClass = new \ReflectionClass($this->$_class);
            $rClass = get_class_methods($this->$_class);
            foreach($rClass as $k => $v)
            echo $v."
";
            //print_r($rClass);

            return $this->$_class;

Answer 1

It seems you are after some kind of proxy class, this might suit your needs.

class ObjectProxy {
    public $object;

    public function __construct($object) {
        $this->object = $object;
    }

    public function __get($name) {
        if (!property_exists($this->object, $name)) {
            return "Error: property ($name) does not exist";
        }
        return $this->object->$name;
    }

    public function __call($name, $args) {
        if (!method_exists($this->object, $name)) {
            return "Error: method ($name) does not exist";
        }
        return call_user_func_array(array($this->object, $name), $args);
    }
}

class A {
    public $prop = 'Some prop';

    public function hello() {
        return 'Hello, world!';
    }
}

class B {
    public function __get($name) {
        if (!isset($this->$name)) {
            $class_name = ucfirst($name);
            $this->$name = new ObjectProxy(new $class_name);
        }
        return $this->$name;
    }
}
$b = new B();
var_dump($b->a->hello());
var_dump($b->a->prop);
var_dump($b->a->foo);
var_dump($b->a->bar());

Output:

string 'Hello, world!' (length=13)
string 'Some prop' (length=9)
string 'Error: property (foo) does not exist' (length=36)
string 'Error: method (bar) does not exist' (length=34)

Example:

http://ideone.com/dMna6

It could be easily extend for other magic methods like __set, __callStatic, __isset, __invoke, etc.