[SOLVED] Add method in an std object in php

Add method in an std object in php

Is it possible to add a method/function in this way, like

$arr = array(
    "nid"=> 20,
    "title" => "Something",
    "value" => "Something else",
    "my_method" => function($arg){....}
);

or maybe like this

$node = (object) $arr;
$node->my_method=function($arg){...};

and if it's possible then how can I use that function/method?

Solution

You cannot dynamically add a method to the stdClass and execute it in the normal fashion. However, there are a few things you can do.

In your first example, you're creating a closure. You can execute that closure by issuing the command:

$arr['my_method']('Argument')

You can create a stdClass object and assign a closure to one of its properties, but due to a syntax conflict, you cannot directly execute it. Instead, you would have to do something like:

$node = new stdClass();
$node->method = function($arg) { ... }
$func = $node->method;
$func('Argument');

Attempting

$node->method('Argument')

would generate an error, because no method "method" exists on a stdClass.

See this SO answer for some slick hackery using the magic method __call.