[BUGFIX] Differ between upload_max_filesize / post_max_size

The environment status should show proper information whether both
PHP.ini settings have the same value or differ (but post_max_size is higher
which is fine).

Resolves: #89543
Releases: master, 9.5
Change-Id: Ib589715507d7e929904366cbda9b33b45e254564
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63879


Tested-by: Daniel Goerz <daniel.goerz@posteo.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Susanne Moog <look@susi.dev>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>
Reviewed-by: Susanne Moog <look@susi.dev>

typo3/sysext/install/Classes/SystemEnvironment/Check.php

@@ -200,11 +200,16 @@ class Check implements CheckInterface
                 'Maximum size for POST requests is smaller than maximum upload filesize in PHP',
                 FlashMessage::ERROR
             ));
-        } else {
+        } elseif ($maximumPostSize === $maximumUploadFilesize) {
             $this->messageQueue->enqueue(new FlashMessage(
-                'The maximum size for file uploads is actually set to ' . ini_get('upload_max_filesize'),
+                'The maximum size for file uploads is set to ' . ini_get('upload_max_filesize'),
                 'Maximum post upload size correlates with maximum upload file size in PHP'
             ));
+        } else {
+            $this->messageQueue->enqueue(new FlashMessage(
+                'The maximum size for file uploads is set to ' . ini_get('upload_max_filesize'),
+                'Maximum post upload size is higher than maximum upload file size in PHP, which is fine.'
+            ));
         }
     }