index.php

<?php
ini_set('display_errors', 1);
error_reporting(E_ALL ^ E_NOTICE);
session_start();

### AUTO CONFIG ##############################
$sSiteRoot = dirname(__FILE__).'/';
##############################################

##############################################
include($sSiteRoot.'app/config/config.php');

// Set timezone
putenv('TZ='.$aConfig['options']['timezone']);
date_default_timezone_set($aConfig['options']['timezone']);

ini_set('include_path', ini_get('include_path').':'.$sSiteRoot.'app/core/libraries/:'.$sSiteRoot.'app/views/');

### URL VARIABLES ############################
// Remove _GET parameters from url
$sURL = array_shift(explode('?', $_SERVER['REQUEST_URI']));

// Force ending slash
if(substr($sURL, -1) != '/' && substr($sURL,-4,1) != '.' && substr($sURL,-3,1) != '.')
{
	// Save _GET parameters
	if(!empty($_SERVER['QUERY_STRING']))
		$sQueryString .= '?'.$_SERVER['QUERY_STRING'];
	
	// Permanently redirect page
	header('HTTP/1.1 301 Moved Permanently');
	header('Location: '.$sURL.'/'.$sQueryString);
	exit;
}

// Break URL into peices
$aURL = explode('/', $sURL);
array_shift($aURL); // Remove first array item, always empty
array_pop($aURL); // Remove last array item, always empty

$sController = strtolower(preg_replace('/([^a-z0-9_-]+)/i', '', $aURL[0]));
$sAction = strtolower(preg_replace('/([^a-z0-9_-]+)/i', '', $aURL[1]));

if(empty($sController)) {
	$sController = 'app';
}

if(empty($sAction)) {
	$sAction = 'index';
}
##############################################

### PREPARE URL PATTERN ######################
require($sSiteRoot.'app/config/routes.php');

// Split patterns into chunks to not choke the server
$aPatternGroups = array_chunk($aRoutePatterns, 80, TRUE);

// Run just created pattern chunks
foreach($aPatternGroups as $aGroupChunk) {
	$aPatterns = array();
	$aKeys = array();
	
	/* Prepare patterns for matching */
	$i = 0;
	foreach($aGroupChunk as $sIndex => $sValue) {
		$aKeys[$i] = $sIndex;
		$sIndex = preg_replace('/<([a-z]+):(.+?)>/i', '($2)', $sIndex);
		$aPatterns[] = '(?P<url'.$i.'>^'.$sIndex.'$)';
		$i++;
	}

	/* Run pattern chunk */
	preg_match('/'.str_replace('/','\/',implode('|',$aPatterns)).'/i', $sURL, $aMatches);

	/* See if one of the patterns stuck */
	foreach(array_reverse($aMatches) as $sIndex => $sValue) {
		if(!is_numeric($sIndex) && !empty($sValue)) {
			// Pattern is found
			$sPattern = str_replace('url',null,$sIndex);
			$sPattern = $aKeys[$sPattern];
			break;
		}
	}
	
	// If pattern is found, don't try anymore chunks
	if(!empty($sPattern)) {
		break;
	}
}
##############################################

### APPLICATION ##############################
require($sSiteRoot.'app/core/gw.php');
require($sSiteRoot.'app/core/application.php');
require($sSiteRoot.'app/core/controller.php');
require($sSiteRoot.'app/core/model.php');
require($sSiteRoot.'app/core/load.php');
require($sSiteRoot.'app/core/error.php');

$oApp = Application::getInstance(true, 'index');
$oLoad = new Load();
$oError = new Error();
$oLoad->reloadInstance(true);
$oError->reloadInstance(true);
##############################################

### DATABASE #################################
include($sSiteRoot.'app/core/libraries/stratum/database.php');
$oDatabase = new Stratum();
$oApp->setDatabase($oDatabase);

if($aConfig['database']['connect'] == true) {
	$oDatabase->connect(
		$aConfig['database']['username'],
		$aConfig['database']['password'],
		$aConfig['database']['database'],
		$aConfig['database']['host']
	);
}
##############################################

foreach($aConfig['autoLoad'] as $sType => $aValues) {
	if(in_array($sType, array('model', 'helper'))) {
		foreach($aValues as $sValue) {
			if(is_array($sValue)) {
				call_user_func_array(array($oApp->load, $sType), $sValue);
			} else {
				$oapp->load->$sType($sValue);
			}
		}
	}
}

ob_start();
ob_implicit_flush(false);

if(count($aRoutePatterns[$sPattern]) > 0 && is_file($sSiteRoot.'app/controllers/'.$aRoutePatterns[$sPattern]['controller'].'.php')) {
	$aRoutePattern = $aRoutePatterns[$sPattern];
	$sController = $aRoutePattern['controller'];
	$sAction = $aRoutePattern['action'];
	
	include($sSiteRoot.'app/controllers/'.$sController.'.php');
	
	if(class_exists($sController)) {
		if(method_exists($sController, $sAction)) {
			// Pull dynamic variables from url
			$sPatternRGXP = preg_replace('/<([a-z]+):(.+?)>/i', '(?P<$1>$2)', $sPattern);
			preg_match('/'.str_replace('/', '\/', $sPatternRGXP).'/i', $sURL, $aParamMatches);
			
			// Put dynamic variables into usable array
			$urlParams = array();
			foreach($aParamMatches as $sKey => $sValue) {
				if(!is_numeric($sKey) && !empty($sValue)) {
					$urlParams[$sKey] = $sValue;
				}
			}
			
			if(is_array($aRoutePattern['param'])) {
				// Combine dynamic and manual url variables to be loaded into the Controller
				$aURLVars = array_merge($urlParams, $aRoutePattern['param']);
			} else {
				$aURLVars = $urlParams;
			}
			
			$oController = $oApp->load->controller($sController);
			$oController->$sAction();
		} else {
			$oApp->error->send('Page not found.', '404');
		}
	} else {
		$oApp->error->send('Page not found.', '404');
	}
} elseif(is_file($sSiteRoot.'app/controllers/'.$sController.'.php')) {
	include($sSiteRoot.'app/controllers/'.$sController.'.php');
	
	if(class_exists($sController)) {
		if(method_exists($sController, $sAction)) {
			$oController = new $sController($sController, $aURL);
			call_user_func_array(array($oController, $sAction), array_slice($aURL, 2));
		} else {
			$oApp->error->send('Page not found.', '404');
		}
	} else {
		$oApp->error->send('Page not found.', '404');
	}
} else {
	$oApp->error->send('Page not found.', '404');
}

echo ob_get_contents();
ob_end_clean();