To determine if your server is running PHP via phpSuExec (i.e., CGI) instead of Apache

• upload a phpinfo() file and check the “Server API” near the top of the file.
• If it says “Apache”, PHP is running on Apache;
• if it says “CGI”, PHP is running via phpSuExec.

This is important because it is impossible to manipulate php.ini directives via htaccess while running PHP on phpSuExec.