Translations:Quick-translation/18/en
From LimeSurvey Manual
A: With big surveys the number of variables sent to the server can easily exceed 1000. By default, PHP only allows 1000 post variables at a maximum, any variables beyond the first 1000 are ignored. You will need to modify your PHP configuration and set the variable 'max_input_vars' to a much higher value - try 5000 or better 10000. If you don't understand what you have to do, please contact your server administrator with this information!