From 652da7630efa8a127dac8d1cb6f740e4bd46493c Mon Sep 17 00:00:00 2001
From: Christian Weiske <cweiske@cweiske.de>
Date: Fri, 21 Apr 2023 22:26:16 +0200
Subject: [PATCH] Fix PHP deprecation: Passing null to parameter #2 ($string)
 of type string

> PHP Deprecated:  explode(): Passing null to parameter #2 ($string) of type string is deprecated
> in plugins/nextcloud_sql_addressbook/nextcloud_sql_addressbook.php
> on line 128
---
 nextcloud_sql_addressbook.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nextcloud_sql_addressbook.php b/nextcloud_sql_addressbook.php
index 5c52fde..19cb8f1 100644
--- a/nextcloud_sql_addressbook.php
+++ b/nextcloud_sql_addressbook.php
@@ -129,6 +129,9 @@ class nextcloud_sql_addressbook extends rcube_plugin
      */
     public function addressbook_get($arguments)
     {
+        if (!isset($arguments['id'])) {
+            return $arguments;
+        }
         $parts = explode('_', $arguments['id'], 2);
         if (count($parts) != 2 || $parts[0] != 'nextcloud') {
             return $arguments;
-- 
2.30.2