From 7b44cbe272e6adf24109a9232a48008a8818f318 Mon Sep 17 00:00:00 2001
From: Evgeny Zinoviev <me@ch1p.io>
Date: Mon, 1 Mar 2021 02:03:07 +0300
Subject: support new protocol

---
 src/Message.php | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

(limited to 'src/Message.php')

diff --git a/src/Message.php b/src/Message.php
index 647afad..92c6005 100644
--- a/src/Message.php
+++ b/src/Message.php
@@ -7,6 +7,8 @@ abstract class Message {
 
     const REQUEST = 0;
     const RESPONSE = 1;
+    const PING = 2;
+    const PONG = 3;
 
     protected $type;
 
@@ -27,10 +29,13 @@ abstract class Message {
      * @return string
      */
     public function serialize(): string {
-        return json_encode([
-            $this->type,
-            $this->getContent()
-        ]);
+        $data = [$this->type];
+        $content = $this->getContent();
+
+        if (!empty($content))
+            $data[] = $content;
+
+        return json_encode($data);
     }
 
 }
\ No newline at end of file
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