fixes #4123

Closes #4123

Merge request studip/studip!2968

docker/studip/config_local.php

 <?php
-/*basic settings for Stud.IP
-----------------------------------------------------------------
-you find here the basic system settings. You shouldn't have to touch much of them...
-please note the CONFIG.INC.PHP for the indivual settings of your installation!*/
-
-namespace Studip {
-    //const ENV = 'development';
-    define ('ENV', getenv('ENV') ?? 'development');
-}
-
-namespace {
-    /*settings for database access
-    ----------------------------------------------------------------
-    please fill in your database connection settings.
-    */
+define ('Studip\\ENV', $_ENV['ENV'] ?? 'development');
 
-    // default Stud.IP database (DB_Seminar)
-    $DB_STUDIP_HOST = getenv('MYSQL_HOST');
-    $DB_STUDIP_USER = getenv('MYSQL_USER');
-    $DB_STUDIP_PASSWORD = getenv('MYSQL_PASSWORD');
-    $DB_STUDIP_DATABASE = getenv('MYSQL_DATABASE');
-    $MAIL_TRANSPORT = getenv('MAIL_TRANSPORT');
+error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
 
-    /*URL
-    ----------------------------------------------------------------
-    customize if automatic detection fails, e.g. when installation is hidden
-    behind a proxy
-    */
-    //$CANONICAL_RELATIVE_PATH_STUDIP = '/';
-    //$ABSOLUTE_URI_STUDIP = 'https://www.studip.de/';
-    //$ASSETS_URL = 'https://www.studip.de/assets/';
-
-    // Set proxy url
-    if ($PROXY_URL = getenv('PROXY_URL')) {
-        $ABSOLUTE_URI_STUDIP = $PROXY_URL;
-        $ASSETS_URL = $PROXY_URL.'/assets/';
-        unset($PROXY_URL);
-    }
+/*URL
+----------------------------------------------------------------
+customize if automatic detection fails, e.g. when installation is hidden
+behind a proxy
+*/
+//$CANONICAL_RELATIVE_PATH_STUDIP = '/';
+//$ABSOLUTE_URI_STUDIP = 'https://www.studip.de/';
+//$ASSETS_URL = 'https://www.studip.de/assets/';
 
-    // Use autoproxy
-    if (getenv('AUTO_PROXY')) {
-        $ABSOLUTE_URI_STUDIP = $_SERVER['HTTP_X_FORWARDED_PROTO'].'://'.$_SERVER['HTTP_X_FORWARDED_HOST'].'/';
-        $ASSETS_URL = $ABSOLUTE_URI_STUDIP.'/assets/';
-    }
-    $MAIL_TRANSPORT = getenv('STUDIP_MAIL_TRANSPORT');
+// Set proxy url
+if (isset($_ENV['PROXY_URL'])) {
+    $ABSOLUTE_URI_STUDIP = $_ENV['PROXY_URL'];
+    $ASSETS_URL = $_ENV['PROXY_URL'].'/assets/';
+}
 
-    $CONTENT_LANGUAGES['en_GB'] = ['picture' => 'lang_en.gif', 'name' => 'English'];
+// Use autoproxy
+if (isset($_ENV['AUTO_PROXY'])) {
+    $ABSOLUTE_URI_STUDIP = $_SERVER['HTTP_X_FORWARDED_PROTO'].'://'.$_SERVER['HTTP_X_FORWARDED_HOST'].'/';
+    $ASSETS_URL = $ABSOLUTE_URI_STUDIP.'/assets/';
 }
+
+$CONTENT_LANGUAGES['en_GB'] = ['picture' => 'lang_en.gif', 'name' => 'English'];

tests/configuration.php

 <?php
 
-return (function ($filename) {
-    if (file_exists($filename)) {
-        require_once $filename;
-
-        return compact('DB_STUDIP_HOST', 'DB_STUDIP_USER', 'DB_STUDIP_PASSWORD', 'DB_STUDIP_DATABASE');
+return (function (string ...$filenames) {
+    foreach ($filenames as $filename) {
+        if (file_exists($filename)) {
+            require_once $filename;
+        }
     }
 
-    return [];
-})(dirname(__DIR__).'/config/config_local.inc.php');
+    return array_filter([
+        'DB_STUDIP_HOST'     => $DB_STUDIP_HOST ?? null,
+        'DB_STUDIP_USER'     => $DB_STUDIP_USER ?? null,
+        'DB_STUDIP_PASSWORD' => $DB_STUDIP_PASSWORD ?? null,
+        'DB_STUDIP_DATABASE' => $DB_STUDIP_DATABASE ?? null,
+    ]);
+})(
+    dirname(__DIR__).'/config/config_defaults.inc.php',
+    dirname(__DIR__).'/config/config_local.inc.php'
+);