This is a tutorial how to integrate PEAR into Codeigniter by Fabian Wesner (german specialist for codeigniter )
What is PEAR?
http://pear.php.netPEAR is short for “PHP Extension and Application Repository” and is pronounced just like the fruit. The purpose of PEAR is to provide:
* A structured library of open-source code for PHP users
* A system for code distribution and package maintenance
* A standard style for code written in PHP, specified here
* The PHP Extension Community Library (PECL), see more below
* A web site, mailing lists and download mirrors to support the PHP/PEAR community
PEAR is a community-driven project governed by its developers. PEAR’s governing bodies are subdivided into the PEAR Group, Collectives, and a President. PEAR’s constitution (adopted in March 2007) defining these groups is documented here. The PEAR project was founded in 1999 by Stig S. Bakken and quite a lot of people have joined the project.
PEAR and Codeigniter
1. PreparationTo use some of PEARs Libraries in Codeigniter you need to create a new folder.
system/application/pear
You must copy the PEAR.php to this directory.
system/application/pear/PEAR.php
Then you copy some more PEAR-Directories and Classes. Pay attention to dependencies!
Example:
system/application/pear/HTTP/Request.php
system/application/pear/Net/Socket.php
system/application/pear/Net/URL.php
2. Enable Hooks
Note: the purpose of the hook is to set the include path to include the path to PEAR. As an alternative to a hook, you could put the same ini_set() function in your config.php file or the main CI index.php file.
You need to enable hooks inside the config.php:
$config['enable_hooks'] = TRUE;
Open hooks.php and add a hook:
$hook['pre_controller'][] = array(
'class' => 'Pear_hook',
'function' => 'index',
'filename' => 'pear_hook.php',
'filepath' => 'hooks'
);
Then create a new file called pear_hook.php:
system/application/hooks/pear_hook.php
<?php
if (!defined('BASEPATH')) exit('No direct script access allowed');
class Pear_hook{
function index(){
// OS independent
ini_set('include_path',ini_get('include_path').PATH_SEPARATOR.BASEPATH.'application/pear/');
// on Apache
// ini_set('include_path',ini_get('include_path').':'.BASEPATH.'application/pear/');
// on Windows
// ini_set('include_path',ini_get('include_path').';'.BASEPATH.'application/pear/');
}
}
?>
3. Use It!
create a library called PearLoader.
system/application/libraries/Pearloader.php
Pearloader.php:
<?php
if (!defined('BASEPATH')) exit('No direct script access allowed');
class Pearloader{
function load($package, $class,$options = null){
require_once($package.'/'.$class.'.php');
$classname = $package."_".$class;
if(is_null($options)){
return new $classname();
}else{
return new $classname($options);
}
}
}
?>
Thats it!
You can use the Pearloader in a codeigniter style. Load the Library and call
$this->pearloader->load(’Packagename’,’Classname’);
The example performes a HTTP_REQUEST to yahoo:
function example(){
$url = 'http://www.yahoo.com';
$this->load->library('pearloader');
$http_request = $this->pearloader->load('HTTP','Request');
$http_request->setURL($url);
$http_request->sendRequest();
echo $http_request->getResponseBody();
}
Thanks to 4webby.com