Notice: Undefined variable: boton1
if($boton1 == '1')
Notice: Undefined index: user_oculto
$user_oculto = $_POST['user_oculto']; //cargamos el nombre de user
$boton1 = '';
if($boton1 == '1')
if( (isset($boton1)?$boton1:'') == '1')
$user_oculto = (isset($_POST['user_oculto']))?$_POST['user_oculto']:'';