Zum Testen, ob es wirklich an suhosin liegt
; Misc Options
; If you fear that Suhosin breaks your application, you can activate Suhosin's
; simulation mode with this flag. When Suhosin runs in simulation mode,
; violations are logged as usual, but nothing is blocked or removed from the
; request. (Transparent Encryptions are NOT deactivated in simulation mode.)
suhosin.simulation = On
Falls ja, dann aber wie gesagt am besten in den Logs suchen.