Changes to the User Permissions Not saving

Question

I am use drupal 6.

it seems like permission page can not save too many settings.

I have try to save permission setting, but it is just not saved into DB. I have found out this is due to "too many fields". (use content permission module). if i uncheck some fields, and then checking lesser fields, permission will be saved.

for example, if I am unchecking 2 check boxes, then checking one check box, permission will be saved.

does any one know which function the permission page used to insert result into db?

my php memory limit is 256M.

Answer 1

You need to adjust the max_input_vars in php.ini. The usual default is 1000, but with a lot of modules, the Drupal permissions page easily eclipses this. Just add another zero and make it 10000 if you have access to php.ini and restart apache. The location of the php.ini file depends on your server configuration.

I had the same issue, with no errors in the error log, and this fixed it for me.

Answer 2

There is a good explanation of the issue that you are having here: http://2bits.com/drupal/drupal-not-saving-admin-pages-large-number-input-fields.html