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Leigh · 11-28-2005, 07:47 PM

Well, after much digging around I discovered the fsockopen function on PHP.NET and cobbled together this little snippet of code:

PHP Code:

$isThere = @ fsockopen("10.0.0.25", 135, $errno, $errstr, 10);

                  if (!$isThere) {

                   echo "Offline";

                  } else {

                   echo "Online";

                  }

It's not a true PING as PING doesn't really use a port, but fsockopen requires a port to be specified. I used the infamous TCP port 135. The other parameters aren't required for this little snippet, but I left them there for completeness.

The other problem I had with this snippet was that if a PC is offline, I got a couple of PHP warnings that broke the display. Once again, Google to the rescue, I found that putting the "@" sign in front of the function suppressed the warnings. That was new one to me!

11-28-2005, 07:47 PM	#3
Leigh Junior Member Join Date: Nov 2005 Location: Ontario, Canada Posts: 10	Well, after much digging around I discovered the fsockopen function on PHP.NET and cobbled together this little snippet of code: PHP Code: `$isThere = @ fsockopen("10.0.0.25", 135, $errno, $errstr, 10); if (!$isThere) { echo "Offline"; } else { echo "Online"; }` It's not a true PING as PING doesn't really use a port, but fsockopen requires a port to be specified. I used the infamous TCP port 135. The other parameters aren't required for this little snippet, but I left them there for completeness. The other problem I had with this snippet was that if a PC is offline, I got a couple of PHP warnings that broke the display. Once again, Google to the rescue, I found that putting the "@" sign in front of the function suppressed the warnings. That was new one to me!