[PHP] Execute command which has root privileges

[vijaypatel]

Hello,

I am using FreeBSD 4.7 ,PHP 4.2.3 & Apache 1.3

I want to execute shell script which contains few IPFW commands. I have tried with 
system(),exec(),passthru() command to execute script but i can't do that. 
Apache has created "www" user on FreeBSD. I found that "www" user has not privilege 
for IPFW.

How can i execute script which contains IPFW commands with PHP?

I have given 777 permission to script file.

Thanking You.