Executing a shell script in background with php
13,998
Solution 1
$str = shell_exec($Command.' 2>&1 > out.log');
You need to redirect the output of the command.
If a program is started with this function, in order for it to continue running in the background, the output of the program must be redirected to a file or another output stream. Failing to do so will cause PHP to hang until the execution of the program ends.
http://php.net/manual/en/function.exec.php
Solution 2
You can try running your command in background using a function like this one:
function exec_bg($cmd) {
if (substr(php_uname(), 0, 7) == "Windows"){
pclose(popen("start /B ". $cmd, "r"));
}
else {
exec($cmd . " > /dev/null &");
}
}
This makes your shell command runs, but the php flow continues.
Author by
Jed
Updated on June 16, 2022Comments
-
Jed almost 2 years
I need to execute a shell script. The catch is I want to do this
$Command = "nohup cvlc input --sout '#transcode {vcodec=h264,acodec=mp3,samplerate=44100}:std{access=http,mux=ffmpeg{mux=flv},dst=0.0.0.0:8083/".output"}' &"; $str = shell_exec($Command);
I dont want it to wait till the command is finished, i want it to run in a background process. I do not want another php thread as it will timeout the command can take up to 3 hours to finish.