Calling method and class held in array

testCallingClassAndMethodHeldInArray.php

<?php

class FactoryClass
{
    public static function build()
    {   
        return new ProductClass();
    }   
}

class ProductClass
{

}


class ModelClass
{
    protected $product;

    public function modelMethod($product)
    {   
        $this->product = $product;
    }   
}


$map = array(
    'factory' => 'FactoryClass',
    'callback' => 'modelMethod',
);

$model = new ModelClass();
$model->$map['callback']($map['factory']::build());
var_dump($model);                                                                                                                                

I did not think that $model->$map['callback']($map['factory']::build()); would work at all, but it did!

$ php --version
PHP 5.3.10-1ubuntu3.2 with Suhosin-Patch (cli) (built: Jun 13 2012 17:19:58) 
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