From 8626c762f6faab25e0d75f14e34284d255657853 Mon Sep 17 00:00:00 2001
From: Stefan Giehl <stefan@matomo.org>
Date: Mon, 15 Nov 2021 11:34:28 +0100
Subject: [PATCH] Another PHP 8.1 fix

Fixes this deprecation warning:
```
PHP Deprecated:  strtoupper(): Passing null to parameter #1 ($string) of type string is deprecated in /srv/matomo/vendor/matomo/matomo-php-tracker/MatomoTracker.php on line 1623
```
---
 MatomoTracker.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MatomoTracker.php b/MatomoTracker.php
index e3efc8f..fe3a0b0 100644
--- a/MatomoTracker.php
+++ b/MatomoTracker.php
@@ -1620,7 +1620,7 @@ protected function sendRequest($url, $method = 'GET', $data = null, $force = fal
 
         $forcePostUrlEncoded = false;
         if (!$this->doBulkRequests) {
-            if (strtoupper($this->requestMethod) === 'POST') {
+            if (!empty($this->requestMethod) && strtoupper($this->requestMethod) === 'POST') {
                 // POST ALL parameters and have no GET parameters
                 $urlParts = explode('?', $url);