PHP on a windows machine; Start process in background

William W picture William W · Jan 14, 2010 · Viewed 12.1k times · Source

I'm looking for the best, or any way really to start a process from php in the background so I can kill it later in the script.

Right now, I'm using: shell_exec($Command); The problem with this is it waits for the program to close.

I want something that will have the same effect as nohup when I execute the shell command. This will allow me to run the process in the background, so that later in the script it can be closed. I need to close it because this script will run on a regular basis and the program can't be open when this runs.

I've thought of generating a .bat file to run the command in the background, but even then, how do I kill the process later?

The code I've seen for linux is:

$PID = shell_exec("nohup $Command > /dev/null & echo $!");
// Later on to kill it
exec("kill -KILL $PID");

EDIT: Turns out I don't need to kill the process

Answer

Jelmer picture Jelmer · Jun 5, 2012

shell_exec('start /B "C:\Path\to\program.exe"');

The /B parameter is key here.

I can't seem to find where I found this anymore. But this works for me.