phpeveryday.com

Create a file named "index.php" within helloworld/web_root. Enter following code:

<?php
error_reporting(E_ALL|E_STRICT);
ini_set('display_errors', true);
date_default_timezone_set('Europe/London');

$rootDir = dirname(dirname(__FILE__));
set_include_path($rootDir . '/library' . PATH_SEPARATOR . get_include_path());

require_once 'Zend/Controller/Front.php';
Zend_Controller_Front::run('../application/controllers');

?>

Ok, let's look at this file in more detail. Line 2-4 is used for setup environtment. Line 3 to ensure that all errors or notices are displayed. Line 4 for setup default time zone.

include_path() specifies a list of directories where the require(), include() and fopen_with_path() functions look for files. You can set at php.ini. But, we don't have to do it. We can use set_include_path(). You can see at line 7.

This is the bootstrap file. Bootstrapping is the term used to describe starting the application up. The core of this code at line 9-10. This will instantiate and dispatch the front controller. It will route request to action controllers.