add server environment support

src/app/model/request.php

@@ -5,12 +5,14 @@ class AppModelRequest {
   private array $_get;
   private array $_post;
   private array $_files;
+  private array $_server;
 
-  public function __construct(array $get, array $post, array $files)
+  public function __construct(array $get, array $post, array $files, array $server)
   {
     $this->_get    = $get;
     $this->_post   = $post;
     $this->_files  = $files;
+    $this->_server = $server;
   }
 
   public function get(string $key) : mixed
@@ -52,6 +54,19 @@ class AppModelRequest {
     }
   }
 
+  public function server(string $key) : mixed
+  {
+    if (isset($this->_get[$key]))
+    {
+      return $this->_get[$key];
+    }
+
+    else
+    {
+      return false;
+    }
+  }
+
   public function hasPost() : bool
   {
     return !empty($this->_post);