From 79f203c4c809f333267d23b70707b1ddc68f441b Mon Sep 17 00:00:00 2001
From: Daniel Karp <danielkarp@gmail.com>
Date: Mon, 18 Mar 2024 09:39:28 -0400
Subject: [PATCH] Give a default value to the param $post_string in http() This
 private function is called with and without this param.

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

diff --git a/src/Subscriber.php b/src/Subscriber.php
index b661f69..ddded92 100644
--- a/src/Subscriber.php
+++ b/src/Subscriber.php
@@ -181,7 +181,7 @@ private function change_subscription($mode, $topic_url, $http_function = false)
      *
      * @return mixed
      */
-    private function http($url, $post_string)
+    private function http($url, $post_string = false)
     {
 
         // add any additional curl options here