Killing a process in PHP

[ChrisMartino]

hey there i am currently coding my panel in php and i run a game server hosting company and i have multiple processes running with the same name how would i kill individual ones with a command in php? thanks

[Maq]

Check out this note:

 

http://us.php.net/manual/en/function.shell-exec.php#57215

[ChrisMartino]

hey that just tells you how to execute a command i need to kill one but there are multiple tasks running with the same name i just want to kill a individual one

[ChrisMartino]

Dose anyone know + edit

[roopurt18]

If you were running *nix you could do:

 

ps aux | grep processname

 

That will give you a listing of:

pid (process_id) user ... user

 

The pid column is what you're interested in; each process has a unique integer id.  Once you know the pid you want to kill, like 5292:

 

kill 5292

 

It's really the kill command you want to send through shell_exec().

 

I'm sure Windows has a similar functionality if you do some Googling.

[ChrisMartino]

this is for my control panel tho it needs to be automated so i need to kill the users server not everyones and all the processes that are running are all called "samp02Xsvr"

[ChrisMartino]

is there anyway to kill the individual process without killing all the samp02Xsvr's ?

[roopurt18]

If the server is started with something like:

samp02Xsvr -U someuser

 

Then

bash$ ps aux | grep samp02xSvr
pid      user             command
1234   apache         samp02Xsvr -U someuser
1223   apache         samp02Xsvr -U anotheruser

 

Basically ps aux should list the command that was issued to start the process and if the user name is a flag to the command, then you should be able to find it.

 

Otherwise I really don't know how you expect to tell them apart.

[ChrisMartino]

i just use / to start the server without the username or the -U

[trq]

This is no longer a php question. I would suggest experimenting with the different examples suggested.

 

You should be starting any server processes using your systems init scripts, these usually take care of easily stopping / starting the services. Another thing you can do is as you start the process, write its process id to a file then use that id to kill the process.

 

Again, none if this has anything to do with php.

[ChrisMartino]

yes it dose i want to do this via php <

[trq]

It doesn't. All your doing is calling a shell command via php's exec, its that shell command you need to figure out.

 

No point barking up the wrong tree.

[roopurt18]

You also need to have a way to distinguish the various servers after they have been started.

 

If you have 15 server.exes running, each tied to a different user, and you want to kill one for a specific user and the only information you have is:

pid      name

12        server.exe

22        server.exe

13        server.exe

44        server.exe

42        server.exe

52        server.exe

62        server.exe

67        server.exe

 

Then how do you expect to accomplish this?  You can't without other distinguishing factors.