set app's constant

mvc/app/config/config.php

@@ -1 +1,5 @@
-"" 
+<?php
+    define('APP_HOME',dirname(dirname(__FILE__)));
+    define('URL',getenv('URL'));
+    define('APP_NAME',getenv('APP_NAME'));
+    

mvc/app/init.php

@@ -1,5 +1,7 @@
 <?php
     //Loading main libraries
-    require_once('libs/Core.php');
-    require_once('libs/Controller.php');
-    require_once('libs/Database.php');
+    require_once('config/config.php');
+
+    spl_autoload_register(function($className){
+        require_once('libs/' . $className . '.php');
+    });

mvc/app/views/welcome/index.php

@@ -1,2 +1,3 @@
 <p><?php echo($data['title']); ?></p>
-<h1>MVC Framework</h1>
+<h1>MVC Framework</h1>
+<?php echo(URL); ?>