The front controller for my portfolio that handles the loading of views based on the uri.

index.php

<?php
/*--------------------------------------------------------
Configurables
--------------------------------------------------------*/

$site_title = "San Antonio Web Designer and Developer - Alex Garcia";
$site_description = "The online web design and development portfolio of Alex Garcia. 
					A San Antonio based artist, web designer and web developer.";
$tracking_enabled = "false";
$site_offline = FALSE;
$page_not_found_view = "page-not-found.php";
$default_home_template = 'template-home.php';
$default_sidebar = 'sidebar-inner.php';
$default_inner_template = 'template-inner.php';

//Define our base app url
define("BASE_URL", 'http://work.garciamade.com/');

//Define where our views are located
define ("VIEWS", 'views/'); 

//Define our path seperator
define ("PATH_SEP", '-');

//If there is anything we need to remove from the beginning of the uri place it here.
define ("PATH_START", "");


define("PAGE_NOT_FOUND_VIEW", 'page-not-found.php');

/*--------------------------------------------------------
Non-Configurables
--------------------------------------------------------*/

if ($site_offline == TRUE)
{
	die('Site is currently offline.');
}
else
{
	//Get the current uri
	$requested_page = $_SERVER['REQUEST_URI'];

	//Replace anything we have in pathstarter
	$requested_page = str_replace(PATH_START, "", $requested_page);
	switch($requested_page)
	{
		case '/':
		case '/home':
			$requested_page = "home";
			$template = $default_home_template;
			$sidebar = $default_sidebar;
		break;
		
		default:
			$template = $default_inner_template;
			$sidebar = $default_sidebar;
		break;
	}
	
	//Remove the trailing slash from uri so we don't get errors if the user
	//enters page/name/ or page/name both will work.
	$requested_page = rtrim($requested_page, "/");

	//Replace the / with underscores and form our files we want to show
	//The content page is the page with our content.
	//we need to include an include($contentPage) in our view page.

	$content_page = str_replace("/", PATH_SEP, $requested_page). ".php";
	$content_page = ltrim($content_page, PATH_SEP);
	$page_title = str_replace("-", " ", $content_page);
	$page_title = ucwords(str_replace(".php", "", $page_title)) . " - " . $site_title;

	//Check to see if the file exists if not throw an error
	if ( ! file_exists(VIEWS . $content_page)) 
	{
		header("Status: 404");
		$page_title = "404 Page Not Found" . " - " . $site_title;;
		$template = "template-plain.php"; 
		$content_page = PAGE_NOT_FOUND_VIEW;
		include(VIEWS . $template);	 
	} 
	else
	{
		include(VIEWS . $template);
	}
}