From d15230efeaf99248b5d92149ddd6516fd56f8ad9 Mon Sep 17 00:00:00 2001
From: MRui <mcruip@sapo.pt>
Date: Wed, 1 Jul 2026 21:01:34 +0100
Subject: [PATCH] Handle potential null query in parse_str

Handle PHP deprecation warning in parse_str(): Passing null to parameter #1 ($string) of type string is deprecated in /snowplow/referer-parser/php/src/Snowplow/RefererParser/Parser.php on line 53
---
 src/Snowplow/RefererParser/Parser.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Snowplow/RefererParser/Parser.php b/src/Snowplow/RefererParser/Parser.php
index 0c8931d..d7687c6 100644
--- a/src/Snowplow/RefererParser/Parser.php
+++ b/src/Snowplow/RefererParser/Parser.php
@@ -50,7 +50,7 @@ public function parse($refererUrl, $pageUrl = null)
 
         $searchTerm = null;
         if ($referer['parameters']) {
-            parse_str($refererParts['query'], $queryParts);
+            parse_str($refererParts['query']??'', $queryParts);
             foreach ($referer['parameters'] as $parameter) {
                 $searchTerm = isset($queryParts[$parameter]) ? $queryParts[$parameter] : $searchTerm;
             }