From linuxgo.net
Disable suhosin via php.ini
1. Login in server as root
2. copy main php.ini in users document root
cp /usr/local/lib/php.ini /home/username/public_html
3. Open php.ini using any editor
vi php.ini
[suhosin]
; Misc Options
suhosin.simulation = On [On is for disable suhosin and off means enabled]
4. Save the file and exit
Disable suhosin using .htaccess
1. create .htaccess file under /home/username/public_html
and add this line
php_flag suhosin.simulation On
save and exit the editor.
If server is suphp enabled
enter following code in .htaccess
deny from all
suPHP_ConfigPath /home/username
Save the file and exit. After that restart apache and suhosin will be disabled for this account.