Me da esto:
Código ERROR:
Ver originalFatal error: Zend_View_Helper_Carrito::resumenCarrito() [<a href='zend-view-helper-carrito.resumencarrito'>zend-view-helper-carrito.resumencarrito</a>]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition "Zend_My_Carrito" of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition in C:\www\the-art-aid\application\modules\default\views\helpers\carrito.php on line 12
Lo llamo desde un view helper para mostrar el resumen de Carrito en la web.