修复监听器为空报错

TobyQu · Jun 16, 2017 · 851d7b3 · 851d7b3
1 parent f2cfd6a
commit 851d7b3
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/Observers/Observer.php b/src/Observers/Observer.php
@@ -35,7 +35,9 @@ public function trigger()
     {
         $args = func_get_args();
 
-        call_user_func_array($this->getCallback(), $args);
+        if (!empty($this->getCallback())) {
+            call_user_func_array($this->getCallback(), $args);
+        }
     }
 
     protected function setCallback($callback)