I use these settings as mentioned by Charlie, I believe, a while back:
/sbin/e-smith/config setprop php MaxExecutionTime 1800
/sbin/e-smith/config setprop php MemoryLimit 100M
/sbin/e-smith/config setprop php PostMaxSize 25M
/sbin/e-smith/config setprop php UploadMaxFilesize 25M
then
/sbin/e-smith/expand-template /etc/php.ini
/etc/e-smith/events/actions/restart-httpd-full
GL
JB