PHP disable functions

[sunardi]

Hi,

I am a beginner in CentOS, and just installed Sentora panel on my vps 1Gb ram CentOS 6.6 32 bit

I have installed csf firewall and folowing friend's advise I modified php.ini with:

disable functions = "disk_total_space, diskfreespace, exec, system, popen, proc_open, proc_nice, shell_exec, passthru, dl, set_time_limit, mail(), show_source, phpinfo, allow_url_fopen, ini_set"

After I rebooted the vps, the Sentora control panel login page was blank
May I know which command in PHP disable functions above are in conflict?

Any help would be appreciated, thanks in advance!

Thanks and Best Regards,
Sunardi