if Loader is not immutable, override Apache env vars

Author: GabeMedrash

src/Loader.php

@@ -335,6 +335,10 @@ public function setEnvironmentVariable($name, $value = null)
             return;
         }
 
+        if (function_exists('apache_setenv')) {
+            if (function_exists('apache_getenv') && apache_getenv($name)) apache_setenv($name, $value);
+        }
+
         putenv("$name=$value");
 
         $_ENV[$name] = $value;