fix: SQLSRV getVersion() when no connection is established

Author: michalsn

Diff for: system/Database/SQLSRV/Connection.php

@@ -561,11 +561,15 @@ public function getVersion(): string
             return $this->dataCache['version'];
         }
 
-        if (! $this->connID || ($info = sqlsrv_server_info($this->connID)) === []) {
+        if (! $this->connID) {
             $this->initialize();
         }
 
-        return isset($info['SQLServerVersion']) ? $this->dataCache['version'] = $info['SQLServerVersion'] : false;
+        if (($info = sqlsrv_server_info($this->connID)) === []) {
+            return '';
+        }
+
+        return isset($info['SQLServerVersion']) ? $this->dataCache['version'] = $info['SQLServerVersion'] : '';
     }
 
     /**

Diff for: user_guide_src/source/changelogs/v4.6.1.rst

@@ -32,7 +32,7 @@ Bugs Fixed
 
 - **CURLRequest:** Fixed an issue where multiple header sections appeared in the CURL response body during multiple redirects from the target server.
 - **Cors:** Fixed a bug in the Cors filter that caused the appropriate headers to not be added when another filter returned a response object in the ``before`` filter.
-- **Database:** Fixed a bug in the ``OCI8`` driver where ``getVersion()`` returned an empty string when the database connection was not yet established.
+- **Database:** Fixed a bug in the ``OCI8`` and ``SQLSRV`` drivers where ``getVersion()`` returned an empty string when the database connection was not yet established.
 
 See the repo's
 `CHANGELOG.md <https://github.com/codeigniter4/CodeIgniter4/blob/develop/CHANGELOG.md>`_