Webmaster Interview Question:

How to set suhosin.post.max_vars in a htaccess file?

Submitted by: Murtaza

The problem is that Apache doesn't know what to do with those values, hence the internal server error. You need to change the lines to the following:
1) php_value suhosin.post.max_vars 8000
2) php_value suhosin.request.max_vars 8000
The php_value causes the setting to be passed along to PHP. If you were setting boolean values (true/false), you would use php_flag instead. This will only work if you are running PHP as an Apache module. Otherwise you have to edit the php.ini file, which may not be an option.
Submitted by: Murtaza