Si tienes acceso a tu php.ini verifica que tengas lo siguiente
Cita: ; - Show all errors except for notices and coding standards warnings
;
error_reporting = E_ALL & ~E_NOTICE
; Print out errors (as a part of the output). For production web sites,
; you're strongly encouraged to turn this feature off, and use error logging
; instead (see below). Keeping display_errors enabled on a production web site
; may reveal security information to end users, such as file paths on your Web
; server, your database schema or other information.
display_errors = On
Saludillos.