学步园

Posted by Fred Wu

If you ever wanted to integrate CodeIgniter and Zend Framework, you might have come across this tutorial by Daniel Vecchiato.

Whilst Daniel has done a great job demonstrating the possibility of using the two frameworks together, concerns have been made: do we actually need to use hooks?

As I understand it, hooks are used to extend the core functionalities of CodeIgniter (as explained in the user guide). Obviously Zend Framework and CodeIgniter are two different systems and there is no intention for us to extend CodeIgniter’s core functionality with Zend Framework.

Using hooks can be dangerous as it’s system-wide, and it modifies the system behaviour.

What I have done is to simply use CodeIgniter’s library structure to load the Zend Framework resources. Below is the tutorial.

Assuming you already have CodeIgniter installed. If not please refer to the user guide for installation.

Usage Sample

<?php</p> <p>class Welcome extends Controller {</p> <p> function Welcome()<br /> {<br /> parent::Controller();<br /> }</p> <p> function index()<br /> {<br /> $this->load->library('zend', 'Zend/Service/Flickr');<br /> // newer versions of CodeIgniter have updated its loader API slightly,<br /> // we can no longer pass parameters to our library constructors<br /> // therefore, we should load the library like this:<br /> // $this->load->library('zend');<br /> // $this->zend->load('Zend/Service/Flickr');</p> <p> $flickr = new Zend_Service_Flickr('YOUR_FLICKR_API_KEY');</p> <p> $results = $flickr->tagSearch('php');<br /> foreach ($results as $result)<br /> {<br /> echo $result->title . '<br />';<br /> }<br /> //$this->load->view('welcome_message');<br /> }<br /> }<br /> ?>

Library Script

Copy the code and paste it to a new file called Zend.php in application/libraries/.

<?php if (!defined('BASEPATH')) {exit('No direct script access allowed');}</p> <p>/**<br /> * Zend Framework Loader<br /> *<br /> * Put the 'Zend' folder (unpacked from the Zend Framework package, under 'Library')<br /> * in CI installation's 'application/libraries' folder<br /> * You can put it elsewhere but remember to alter the script accordingly<br /> *<br /> * Usage:<br /> * 1) $this->load->library('zend', 'Zend/Package/Name');<br /> * or<br /> * 2) $this->load->library('zend');<br /> * then $this->zend->load('Zend/Package/Name');<br /> *<br /> * * the second usage is useful for autoloading the Zend Framework library<br /> * * Zend/Package/Name does not need the '.php' at the end<br /> */<br /> class CI_Zend<br /> {<br /> /**<br /> * Constructor<br /> *<br /> * @param string $class class name<br /> */<br /> function __construct($class = NULL)<br /> {<br /> // include path for Zend Framework<br /> // alter it accordingly if you have put the 'Zend' folder elsewhere<br /> ini_set('include_path',<br /> ini_get('include_path') . PATH_SEPARATOR . APPPATH . 'libraries');</p> <p> if ($class)<br /> {<br /> require_once (string) $class . EXT;<br /> log_message('debug', "Zend Class $class Loaded");<br /> }<br /> else<br /> {<br /> log_message('debug', "Zend Class Initialized");<br /> }<br /> }</p> <p> /**<br /> * Zend Class Loader<br /> *<br /> * @param string $class class name<br /> */<br /> function load($class)<br /> {<br /> require_once (string) $class . EXT;<br /> log_message('debug', "Zend Class $class Loaded");<br /> }<br /> }</p> <p>?>

Happy coding! Oh and don’t forget, Zend Framework is PHP 5 only, so it won’t work on your PHP 4 installation.