ENGCOM-3455: Fix PHP Notice due to #18727 #19185

Author: Stanislav Idolov

pub/index.php

@@ -25,15 +25,14 @@
 }
 
 $params = $_SERVER;
-$params[Bootstrap::INIT_PARAM_FILESYSTEM_DIR_PATHS] = array_replace_recursive(
-    $params[Bootstrap::INIT_PARAM_FILESYSTEM_DIR_PATHS],
-    [
+$params[Bootstrap::INIT_PARAM_FILESYSTEM_DIR_PATHS] =
+    ($params[Bootstrap::INIT_PARAM_FILESYSTEM_DIR_PATHS] ?? [])
+    + [
         DirectoryList::PUB => [DirectoryList::URL_PATH => ''],
         DirectoryList::MEDIA => [DirectoryList::URL_PATH => 'media'],
         DirectoryList::STATIC_VIEW => [DirectoryList::URL_PATH => 'static'],
         DirectoryList::UPLOAD => [DirectoryList::URL_PATH => 'media/upload'],
-    ]
-);
+    ];
 $bootstrap = \Magento\Framework\App\Bootstrap::create(BP, $params);
 /** @var \Magento\Framework\App\Http $app */
 $app = $bootstrap->createApplication(\Magento\Framework\App\Http::class);