Query Server for Apache version only

[NTLDR]

Apache as a module is the better method to use, take a look at the Server API part of phpinfo() at the very top and it should say Apache if your running it as a module.

For the Linux version info, provided you can run shell_exec() you can get the OS info with:

PHP Code:

$info = shell_exec('uname'); 


There are various options to add to get different stuff:

Usage: uname [OPTION]...
Print certain system information. With no OPTION, same as -s.

-a, --all print all information
-m, --machine print the machine (hardware) type
-n, --nodename print the machine's network node hostname
-r, --release print the operating system release
-s, --sysname print the operating system name
-p, --processor print the host processor type
-v print the operating system version
--help display this help and exit
--version output version information and exit

The info will be returned in the $info variable. I'd advise against making this information publicly available though