symfony
diff --git a/‎src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler.php
Copy file name to clipboardExpand all lines: src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler.php
+21-3Lines changed: 21 additions & 3 deletions b/‎src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler.php
Copy file name to clipboardExpand all lines: src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler.php
+21-3Lines changed: 21 additions & 3 deletions
@@ -210,14 +210,32 @@ public function shutdown()
         });
     }
 
+    /**
+     * @return ?string
+     */
+    private function getModeFromEnvironment()
+    {
+        if (false !== $this->mode) {
+            return $this->mode;
+        }
+
+        if (isset($_SERVER['SYMFONY_DEPRECATIONS_HELPER'])) {
+            return $this->mode = $_SERVER['SYMFONY_DEPRECATIONS_HELPER'];
+        }
+
+        if (isset($_ENV['SYMFONY_DEPRECATIONS_HELPER'])) {
+            return $this->mode = $_ENV['SYMFONY_DEPRECATIONS_HELPER'];
+        }
+
+        return $this->mode = getenv('SYMFONY_DEPRECATIONS_HELPER');
+    }
+
     private function getConfiguration()
     {
         if (null !== $this->configuration) {
             return $this->configuration;
         }
-        if (false === $mode = $this->mode) {
-            $mode = getenv('SYMFONY_DEPRECATIONS_HELPER');
-        }
+        $mode = $this->getModeFromEnvironment();
         if ('strict' === $mode) {
             return $this->configuration = Configuration::inStrictMode();
         }