Improve params.

src/Libs/Params.php

@@ -13,6 +13,10 @@ class Params {
       }
     }
     
+    public function __isset($index) {
+      return isset($this->data[$index]);
+    }
+    
     public function __get($index){
         return (isset($this->data[$index]) && $this->data[$index] != '') ? $this->data[$index] : null;
     }

src/Libs/Router.php

@@ -1,4 +1,5 @@
 <?php
+
 namespace Libs;
 
 use Libs\Request;
@@ -119,15 +120,17 @@ class Router{
           if (isset($router['middleware'])){
             $middleware = explode('::',$router['middleware']);
             $data = call_user_func_array($middleware, [$router['callback'], $args, $params]);
-          }else
+          } else {
             $params[] = $args;
-            $data = call_user_func_array($router['callback'], $params);  
+            $data = call_user_func_array($router['callback'], $params); 
+          }
         }else{
           if (isset($router['middleware'])){
             $middleware = explode('::',$router['middleware']);
             $data = call_user_func_array($middleware, [$router['callback'], $args]);
-          }else
+          } else {
             $data = call_user_func_array($router['callback'], [$args]);
+          }
         }
         
         if (isset($data)){