PHP exec: hangs, doesn't continue to next line

Question

I have a php file 'run.php' which I'm running from the terminal. Within this file I have the following lines:

exec("open-crawlers $port 2>&1",$out,$code); echo 'hello';

The problem that I'm having is that the terminal hangs after executing the 'exec' command; the program doesn't reach the second line.

What happens when you execute it on the command line yourself? — Rijk, Sep 14 '11 at 10:55

score 16 · Accepted Answer · answered Sep 14 '11 at 10:57

16

Try this:

exec("nohup open-crawlers $port >> /tmp/log_file.log 2>&1 &");
echo 'hello';

answered Sep 14 '11 at 10:57

Book Of Zeus

1

Thanks. Your answer inspired my solution,this command worked for me: exec("open-crawlers $port >> error.txt 2>&1 &",$out,$code); – Fortisimo Sep 14 '11 at 11:23
4

Just a comment in case someone else has the problem I did. You have to both pipe the output to a file as well as the appended "&". If you don't pipe the output, it will hang. Just pipe to /dev/null if you don't care about it. – Brent Dec 18 '12 at 00:47
1

Love you : ) : ) – Petar Vasilev Jul 21 '18 at 10:05

1 Answers1