diff --git a/symfony/framework-bundle/3.3/config/bootstrap.php b/symfony/framework-bundle/3.3/config/bootstrap.php
index 78b63c26..cb1ea019 100644
--- a/symfony/framework-bundle/3.3/config/bootstrap.php
+++ b/symfony/framework-bundle/3.3/config/bootstrap.php
@@ -6,7 +6,7 @@ require dirname(__DIR__).'/vendor/autoload.php';
 
 // Load cached env vars if the .env.local.php file exists
 // Run "composer dump-env prod" to create it (requires symfony/flex >=1.2)
-if (is_array($env = @include dirname(__DIR__).'/.env.local.php') && ($_SERVER['APP_ENV'] ?? $_ENV['APP_ENV'] ?? $env['APP_ENV']) === $env['APP_ENV']) {
+if (is_array($env = @include dirname(__DIR__).'/.env.local.php') && ($_SERVER['APP_ENV'] ?? $_ENV['APP_ENV'] ?? $env['APP_ENV'] ?? null) === ($env['APP_ENV'] ?? null))) {
     foreach ($env as $k => $v) {
         $_ENV[$k] = $_ENV[$k] ?? (isset($_SERVER[$k]) && 0 !== strpos($k, 'HTTP_') ? $_SERVER[$k] : $v);
     }
diff --git a/symfony/framework-bundle/4.2/config/bootstrap.php b/symfony/framework-bundle/4.2/config/bootstrap.php
index 976a7763..58494c55 100644
--- a/symfony/framework-bundle/4.2/config/bootstrap.php
+++ b/symfony/framework-bundle/4.2/config/bootstrap.php
@@ -6,7 +6,7 @@ require dirname(__DIR__).'/vendor/autoload.php';
 
 // Load cached env vars if the .env.local.php file exists
 // Run "composer dump-env prod" to create it (requires symfony/flex >=1.2)
-if (is_array($env = @include dirname(__DIR__).'/.env.local.php') && ($_SERVER['APP_ENV'] ?? $_ENV['APP_ENV'] ?? $env['APP_ENV']) === $env['APP_ENV']) {
+if (is_array($env = @include dirname(__DIR__).'/.env.local.php') && ($_SERVER['APP_ENV'] ?? $_ENV['APP_ENV'] ?? $env['APP_ENV'] ?? null) === ($env['APP_ENV'] ?? null))) {
     foreach ($env as $k => $v) {
         $_ENV[$k] = $_ENV[$k] ?? (isset($_SERVER[$k]) && 0 !== strpos($k, 'HTTP_') ? $_SERVER[$k] : $v);
     }