Performance between calling a Class property vs a Class method in PHP? -

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i know not noticeable @ sake of learning, there overhead of calling class methods on calling class property show in example below $router->controller , $router->action ? please don't flame me premature optimization, trying learn more.

// using class property $router = new router($uri, $uri_route_map); $router->dispatch($router->controller, $router->action);  // using class methods instead $router = new router($uri, $uri_route_map); $router->dispatch($router->controller(), $router->action());

$router->controller accessing class property, reading variable.
$router->controller() calling function. calling function bound have more overhead reading variable, since function read variable.


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