Fatal error: Uncaught Error: Call to a member function query() on null in C:\Apache24\htdocs\soitec\persistencia\PlanoAulaDAO.php:18 Stack trace: #0 C:\Apache24\htdocs\soitec\xml\xmlcab.php(13): PlanoAulaDAO->consultaPlanoPais() #1 {main} thrown in C:\Apache24\htdocs\soitec\persistencia\PlanoAulaDAO.php on line 18