Query Server for Apache version only
 

Can someone please tell me why I get an undefined function error when running this code in the functions.php? I want to query the server for the Apache version without getting the long string you get using SERVER_SOFTWARE.

apache_get_version() is only available in PHP version > 4.3.2, so this might be the cause.

Try this snippet:

Thank you, sir. That worked great! ;)

The server I am on is running PHP v4.3.3. I'm not sure why that code I posted doesn't work. It should have. :surprised:

Is there also a way to get the version of UNIX or Linux (as my server has)?

Is apache running as a module or as CGI? As apache_get_version() only works if its run as a module.

You got me on that one. I have no idea which way they have it set up. Apparently, it must be set up as CGI since the script gives me the unknown function error, right? :) Is one way really any better than the other?

Also, is there a way to pull the Linix version number out, too?

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:

There are various options to add to get different stuff:

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

Is there such a thing as this for the Linux version?

#1 SMP Mon Aug 18 14:34:09 EDT 2003

That's what it returns.

I only have this info displayed for Admins. It is not available to the other users. ;)

The Server API just says Apache.

If you mean the Linux Kernel version then uname -r is what you want.

I've just tired apache_get_version(); on my server and it seems to work correctly for me with the Server API as Apache (ie a module), however, I think what you get returned from that is the same as you'll get from getenv('SERVER_SOFTWARE'); as both return Apache for me as I've set it to not show any other details in httpd.conf.

It must be running as CGI on my server then. That would explain why I get the error. The code KirbyDE posted above gave me just the version number of Apache and nothing else. That's all I needed as I already have the other info.

I tried the -r and this is what I got:

2.4.20-20.7smp

Does that look right to you? What does the smp stand for?

What is the exact code you used with this? apache_get_version();

Yes, that looks right ;) The SMP (symmetric multiprocessing) part means your kernel has been complied to support more than one CPU.

I just did:

Which gave me the same result as what I see on my phpinfo() page for the SERVER_SOFTWARE variable.

This is what I get when I try to run it:

Fatal error: Call to undefined function: apache_get_version() in XXXXXXXXXX :(