A PHP Error was encountered

Severity: Warning

Message: Invalid argument supplied for foreach()

Filename: models/Problema.php

Line Number: 552

Backtrace:

File: /homepages/33/d349327298/htdocs/otraeducacion/matematicas/application/models/Problema.php
Line: 552
Function: _error_handler

File: /homepages/33/d349327298/htdocs/otraeducacion/matematicas/application/models/Problema.php
Line: 15
Function: getFamilias

File: /homepages/33/d349327298/htdocs/otraeducacion/matematicas/application/controllers/Problemas.php
Line: 252
Function: generarVarios

File: /homepages/33/d349327298/htdocs/otraeducacion/matematicas/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 0

Filename: controllers/Problemas.php

Line Number: 254

Backtrace:

File: /homepages/33/d349327298/htdocs/otraeducacion/matematicas/application/controllers/Problemas.php
Line: 254
Function: _error_handler

File: /homepages/33/d349327298/htdocs/otraeducacion/matematicas/index.php
Line: 317
Function: require_once