PHP Ping

mrfreeze

So I've seen some discussion here about pinging with php, but never the answer I'm looking for. Does anyone know of a way to ping from a php script without having to pass commands through to the system? As far as I know php has no support for ICMP. This is what I have been doing to get a ping time...

function ping($host) {
$ip=gethostbyname($host);
$result=ping -c 1 $ip;
$a=strpos($result, "time=");
$b=strpos($result, " ms");
if (!$a || !$b) {
return FALSE;
}
$a=$a+5;
$r=substr($result, $a, $b-$a);
return $r;
}

It seems stupid to have to do it this way. Suggestions?

-Mike

brandonschnell

you might be able to use an open source ping program and port it to be used as a module in php. but how you're doing this now is likely your best bet.

kparker

It seems stupid to have to do it this way.

Seems smart to me--your program (and those who wrote the modules on which you depend) don't have to know anything at all about ICMP this way.

Anon

this one dosen't work on my windows-maschine.
there is no data in $result.
i tried many other ways but none worked.
is there an option to turn on in php?
or dosen't it work on windows?

tnx Wolf

ps: excuse my BAD english. i'm german.

mrfreeze

That ping function is dependat on the output of the ping command. The output under win98/2k/me will be different than it is my OpenBSD box where I use it.
Try this...

function ping($host) {
$ip=gethostbyname($host);
$result=ping -n 1 $ip;
$a=strpos($result, "time");
$b=strpos($result, "ms");
if (!$a || !$b) {
return FALSE;
}
$a=$a+5;
$r=substr($result, $a, $b-$a);
return $r;
}

Anon

im still getting no result.

I tried both scripts.

mrfreeze

I'm at a loss for you then. I tested that scripts on a win98 box and it works. What version of Windows are you using?

Anon

if you're using a german version of Windows, you'll have to check for "Zeit" and not for "time"!