Request object returns empty parameters when we make a POST method, a…

…nd spoof it as a GET request using X-HTTP-METHOD-OVERRIDE or _method parameter (#15410)

Fix issue where request object fails to return parameters when we make a POST method, and spoof it as a GET request using X-HTTP-METHOD-OVERRIDE or _method parameter

#15348

src/Illuminate/Http/Request.php

@@ -665,7 +665,7 @@ protected function getInputSource()
             return $this->json();
         }
 
-        return $this->getMethod() == 'GET' ? $this->query : $this->request;
+        return $this->getRealMethod() == 'GET' ? $this->query : $this->request;
     }
 
     /**