turn off FCGId PHP sub-processes

PHP sub-process handling is not working well so we want turn off it.

Problem: System Settings -> Features and Plugins -> Server Templates Default FCGId PHP sub-processes can't set to 0.

and if i set it to none then one row generated to the php5.fcgi files: "export PHP_FCGI_CHILDREN" but we do not give value to PHP_FCGI_CHILDREN variable anywhere and we don't know what is the exact effect of this.

Webmin help said "Setting it to None will cause PHP processes to be launched only as needed on demand, and to be cleaned up after some period of inactivity."

more details: http://httpd.apache.org/mod_fcgid/mod/mod_fcgid.html

"PHP child process management (PHP_FCGI_CHILDREN) should always be disabled with mod_fcgid, which will only route one request at a time to application processes it has spawned; thus, any child processes created by PHP will not be used effectively. (Additionally, the PHP child processes may not be terminated properly.) By default, and with the environment variable setting PHP_FCGI_CHILDREN=0, PHP child process management is disabled."

So please help to clear out this situation.

thanks Lawrence