From df50c8da03033c3282a9589b292b00002f4f08e8 Mon Sep 17 00:00:00 2001
From: Damian Mooyman <damian@silverstripe.com>
Date: Thu, 2 Nov 2017 11:52:20 +1300
Subject: [PATCH] BUG Use parse_str in place of guzzle library Fixes #7540

---
 src/Core/Startup/ParameterConfirmationToken.php | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/Core/Startup/ParameterConfirmationToken.php b/src/Core/Startup/ParameterConfirmationToken.php
index 9b8d236d4..642812c3b 100644
--- a/src/Core/Startup/ParameterConfirmationToken.php
+++ b/src/Core/Startup/ParameterConfirmationToken.php
@@ -2,7 +2,6 @@
 
 namespace SilverStripe\Core\Startup;
 
-use function GuzzleHttp\Psr7\parse_query;
 use SilverStripe\Control\Controller;
 use SilverStripe\Control\HTTPRequest;
 use SilverStripe\Control\HTTPResponse;
@@ -138,7 +137,7 @@ class ParameterConfirmationToken
 
         // Filter backURL if it contains the given request parameter
         list(,$query) = explode('?', $backURL);
-        $queryArgs = parse_query($query);
+        parse_str($query, $queryArgs);
         $name = $this->getName();
         if (isset($queryArgs[$name])) {
             return $queryArgs[$name];