PHP PID Check

[dog199200]

Hi I am wondering, how do you do a PID check? I am building a server check that checks to see if a program is running, and if it is it echo's back online but if its not it echo's back offline. The thing is I don't know how to check in the task manager to see if pid of the server file is running. here is what i have so far:

 

 

<?php
$command = shell_exec('TASKLIST /FI "PID eq 3392" /FI "STATUS eq RUNNING"');

if ($command) {

echo 'ONLINE';

} else {

echo 'OFFLINE';

}
?>

 

What that is suppose to do is check the tasklist to see if the PID id is present, and if its not then it fails and says offline, but the problem is that iot always echos back "online" even when the program isn't running

 

[trq]

Your only checking that shell_exec() has executed correctly (hence its always true). You need to check the string contained within $command and see what it holds.

[dog199200]

umm i have no idea what you mean, i'm rather new to php :-/ but there is one thing I didn't account for... I didn't know the PID changes so the code would then have to look like this:

 

<?php
$PID = "I Don't Know What To Use Here";
$command = shell_exec('TASKLIST /FI "PID eq $PID" /FI "STATUS eq RUNNING"');

if ($command == true && *the same check used to get the pid of the file*) {

echo 'ONLINE';

} else {

echo 'OFFLINE';

}
?>

 

 

I think i went about that the right way :-/ i've looked up PID commands in php and i found none that checks the pid of an external file, just the pid of the running file