CODEWITHSUNDEEP
php
qtgye
qtgye

Reputation: 3610

Nested method in php object

How can I create something like

MyObject->property->method()

in PHP?

I only know how to create a method for a class: 

class MyObject
{
    public function MyMethod()
    {
       // do something
    }
}

In Javascript I can easily do something like 

var MyObject = {
   property : {
     method : function ()
              {
                 // do something
              }
   }
}

How do I do that?

Upvotes: 1

Views: 85

Answers (3)

hakre
hakre

Reputation: 197682

As others have correctly answered, this works differently in PHP and Javascript. And these differences are also the reason why in PHP you need to define the class methods before you run them. It might become a bit more dynamic in the future but I'm sure not on the level of Javascript.

You can however fake this a bit in PHP because you can assign functions to properties dynamically:

$myObject = new PropCall;
$myObject->property->method = function() {
    echo "hello world\n";
};    

$myObject->property->method();

This example outputs:

hello world

This does work because some little magic has been added in the instantiated object:

class PropCall
{
    public function __call($name, $args) {
        if (!isset($this->$name)) {
            return null; // or error handle
        }
        return call_user_func_array($this->$name, $args);
    }

    public function __get($name) {
        $this->$name = new PropCall;
        return $this->$name;
    }
}

This class code checks if a dynamic property has been added with the name of the method called - and then just calls the property as a function.

Upvotes: 0

Andizer
Andizer

Reputation: 344

You can set an object as the value of a property. Something like this:

class Foo {
   public $Bar;

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

class Bar {

   public function ShowBar() {
       echo 'Bar';
   }   

}

$Foo = new Foo();
$Foor->Bar->ShowBar();

Upvotes: 2

deceze
deceze

Reputation: 522032

In Javascript you can create objects and methods inline, in PHP you need to have a class and instantiate it:

class Foo {

    public function method() {}

}

class MyObject {

    public $property;

    public function __construct() {
        $this->property = new Foo;
    }

}

$o = new MyObject;
$o->property->method();

Upvotes: 2

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