Calling a classes method from same classes property syntax? PHP

Question

In php reading from here

http://docs.php.net/manual/en/migration54.new-features.php

It says,

Class member access on instantiation has been added, e.g. (new Foo)->bar().

I have a class and call its methods like below (as I cannot do what it says above!!),

$router = new RouterCore();
$method = $router->method;
$controller = new $router->controller();
$controller->$method();

What is the syntax for doing what is stated above when both of the class name and the method name exist as properties of another class? I have tried what is below;

$router = new RouterCore();
new ($router->controller())->$router->method(); // no go
new $router->controller()->$router->method(); // no go
new ($router->controller()->$router->method()); // no go

lll · Accepted Answer · 2012-07-24 07:00:34Z

1

You're not following the syntax from the documentation.

new ($router->controller())->$router->method();

is not the same as

(new $router->controller())->$router->method();

In the first instance you are trying to perform new on the result of method(), however the second instance creates a new object from the result of controller() and then calls it's method.

Even then $router is not going to be a property of the controller, you need to evaluate $router->method() first and then use that as the method name.

I suspect what you actually want is

(new $router->controller())->{$router->method()}();

edited Jul 24, 2012 at 7:00

answered Jul 24, 2012 at 6:55

lll

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3 Comments

Griff Over a year ago

Thank you what I wanted was very close to what you said it was, (new $this->controller())->{$this->method}();, will accept when I can, was a very simple mistake to make had me stumped for about half an hour, the joy of programming :p

Griff Over a year ago

Is there any documentation on using the curly braces I have never seen it done before and would like to read up on it?

lll Over a year ago

@Griff Sure it's hidden in the String documentation under variable parsing.

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