Розробка середовища для управління сайтами на основі HTML5

            if (

                  file_exists(LIBRARY_PATH.'/'.$class_path) ||

                  file_exists(MODELS_PATH.'/'.$class_path) ||

                  file_exists(VIEWS_PATH.'/'.$class_path) ||

                  file_exists(CONTROLLERS_PATH.'/'.$class_path)

                  )

            {

                  require_once($class_path);

                  return true;

            }

            return false;

      }

library\ Application.php

<?php

      class Application

      {

            static $instance; 

            /**

             *

             * @return Application

             */

            static function getInstance()

            {

                  if (!self::$instance)

                        self::$instance = new self();

                  return self::$instance;

            } 

            protected $request = array();

            protected $response = array();

            protected $is_post = false;

            protected $url = "";

            protected $host = ""; 

            static $dispatch_rules = array(

                  'Index'    => array(

                        '_module'  => 'default',

                        '_controller' => 'index'

                  ),

                  'Admin_Login'  => array(

                        '_module'  => 'admin',

                        '_controller' => 'login'

                  ),

                  'Admin_Index'  => array(

                        '_module'  => 'admin',

                        '_controller' => 'index'

                  ),

                  'Admin_Settings' => array(

                        '_module'  => 'admin',

                        '_controller' => 'settings'

                  ),

                  'Admin_Pages'  => array(

                        '_module'  => 'admin',

                        '_controller' => 'pages'

                  ),

                  'Admin_Menu'  => array(

                        '_module'  => 'admin',

                        '_controller' => 'menu'

                  ),

            ); 

            private function __construct()

            {

                  $this->request = $_REQUEST;

                  if ($_POST)

                        $this->is_post = true;

                  $this->host  = $_SERVER['HTTP_HOST'];

                  $this->url  = $_SERVER['REQUEST_URI'];

                  $this->request += $this->parseRequestURL();

            } 

            public function run()

            {

                  //Запускаем диспетчеризацию

                  $controller_class = "Index";

                  foreach (self::$dispatch_rules as $class=>$rules)

                  {

                        $flag = true;

                        foreach ($rules as $param=>$value)

                        {

                              if ($this->request[$param] != $value)

                              {

                                    $flag = false;

                                    break;

                              }

                        }

                        if ($flag)

                        {

                              $controller_class = $class;

                              break;

                        }

                  }

                  //Инициализируем контроллер

                  $controller = new $controller_class();

                  if ($controller->redirect)

                        return header("Location: {$controller->redirect}");

                  $controller->init();

                  if ($controller->redirect)

                        return header("Location: {$controller->redirect}"); 

                  //Если не запрещено,  рендерим свзяанное представление

                  if ($controller->view && $controller->render)

                  {

                        $this->response['html'] = $controller->view->render(null,$controller->layout);

                  } 
 
 

                  //Выводим результат рендеринга представления

                  echo $this->response['html'];

            } 

            public function getRequest($param=null)

            {

                  if ($param===null)

                        return $this->request;

                  else

                        return $this->request[$param];

            } 

            public function isPost()

            {return $this->is_post;} 

            public function getUrl()

            {return $this->url;} 

            public function getHost()

            {return $this->host;} 

            public function parseRequestURL($url=null)

            {

                  //Парсинг входного  УРЛа и преобразование в массив  входных параметров на базе  статической таблицы маршрутизации.

                  if ($url===null)

                        $url = $this->url;

                  $request = array(); 

                  //Вырезаем разширение  из УРЛа чтобы оно не попало  в входные параметры

                  $url_array = explode('.',$url);

                  if (count($url_array)>1)

                        array_splice($url_array,-1,1);

                  $url = implode('.',$url_array); 

                  //Разбиваем входной  УРЛ на секции

                  $params = explode('/',$url);

                  //Вырезаем задний  слэш

                  array_splice($params,0,1);

                  if (count($params))

                  {

                        foreach ($params as $i=>$param)

                        {

                              switch ($i)

                              {

                              case 0:

                                    switch ($param)

                                    {

                                    case 'admin':

                                          $request['_module'] = 'admin';

                                    break;

                                    case 'index':

                                    case '':

                                          $request['_module'] = 'default';

                                          $request['_controller'] = 'index';

                                    break;

                                    default:

                                          $request['_module'] = 'default';

                                          $request['_controller'] = 'index';

                                          if (!$request['_params'])

                                                $request['_params'] = array();

                                          $request['_params'][] = $param;

                                    break;

                                    }

                              break;

                              case 1:

                                    switch ($params[0])

                                    {

                                    case 'admin':

                                          switch ($param)

                                          {

                                          case 'login':

                                          case 'pages':

                                          case 'menu':

                                          case 'settings':

                                                $request['_controller'] = $param;

                                          break;

                                          case 'index':

                                          case '':

                                                $request['_controller'] = 'index';

                                          break;

                                          default:

                                                $request['_controller'] = 'index';

                                                if (!$request['_params'])

                                                      $request['_params'] = array();

                                                $request['_params'][] = $param;

                                          break;

                                          }

                                    break;

                                    default:

                                          if (!$request['_params'])

                                                $request['_params'] = array();

                                          $request['_params'][] = $param;

                                    break;

                                    }

                              break;