little improvement

TelegramBot · Jun 30, 2015 · 7913106 · 7913106
1 parent 7489f93
commit 7913106
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/BaseType.php b/src/BaseType.php
@@ -63,7 +63,9 @@ public function toJson($inner = false)
 
         foreach (static::$map as $key => $item)  {
             $property = lcfirst(self::toCamelCase($key));
-            $output[$key] = $item === true ? $this->$property : $this->$property->toJson(true);
+            if(!is_null($this->$property)) {
+                $output[$key] = $item === true ? $this->$property : $this->$property->toJson(true);
+            }
         }
 
         return $inner === false ? json_encode($output) : $output;