<html><body><?php$conex = ocilogon("system","contraseña_que_hayas_establecido_a_system");$sent = ociparse($conex,"select 1 from dual");ociexecute($sent);if (ocifetchinto($sent,&$tupla)) {echo "<br>TODO FUNCIONA!!";} else {echo "<br>Problemas...";}?></body></html>