Pro PHP- Patterns, Frameworks, Testing and More

CHAPTER 14 ■ MVC ARCHITECTURE^211

class index implements IController {

public function index() {

$view = new View();

$view->name = "Kevin";

$result = $view->render('../views/index.php');

$fc = FrontController::getInstance();

$fc->setBody($result);

}

}

The View

The view model is one of the more complex classes in an MVC framework. It is designed to

create a scope for variables (such as $view->name in Listing 14-6) and include the file returning

the parsed output.

This is achieved by including from within a method, and thus limiting the scope to that

method, and by using the output buffering feature of PHP. The actual properties support

is provided by the ArrayObject SPL class, using a blank starting array and the special flag

ARRAY_AS_PROPS, which allows for easy creation of a property overloaded object.

Create the view model as shown in Listing 14-7.

■Note This class is called View and is a model. It provides view rendering functionality. The “view” is actually

the template defined later on, and will be found in the views folder.

Listing 14-7. The View Model Class

> pico –w application/models/view.php

<?php

class View extends ArrayObject {

public function __construct() {

parent::__construct(array(), ArrayObject::ARRAY_AS_PROPS);

}

public function render($file) {

ob_start();

include(dirname(__FILE__). '/'. $file);

return ob_get_clean();

}

}

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