From 4a47691a75627dac16363c1ff11e0c701384946f Mon Sep 17 00:00:00 2001
From: walkor <walkor@users.noreply.github.com>
Date: Wed, 24 Feb 2016 17:03:18 +0800
Subject: [PATCH] Update Nsp.php

---
 src/Nsp.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Nsp.php b/src/Nsp.php
index 067eac5..541c211 100644
--- a/src/Nsp.php
+++ b/src/Nsp.php
@@ -93,7 +93,7 @@ public function remove($socket)
  * @api public
  */
 
-    public function emit($ev)
+    public function emit($ev = null)
     {
         $args = func_get_args();
         if (isset(self::$events[$ev]))