Example of loading the Zend Framework as a Lithium library

app-config-bootstrap-libraries.php

<?php

use \lithium\core\Libraries;

// Lots of other stuff...

/**
 * Zend Framework 1.11.x is installed via PEAR into the standard PHP include_path
 * location. We just need Lithium to know how to get to it.
 */
Libraries::add('Zend', array(
    'prefix' => 'Zend_',
    'path' => 'Zend', // To look in "{$include_path}/Zend"...
    'bootstrap' => 'Loader/Autoloader.php', // To include Zend_Load_Autoloader...
    'loader' => array('Zend_Loader_Autoloader', 'autoload'),
));