运行php exec（）进行后台进程

Question

I have set up a line of code in my class to run a function in the background using the following line on my linux server:

$cmd = "nohup wget -q <-url here-> /dev/null 2>&1 &")"; $exec = exec( 'bash -c "'.$cmd.'"' );

(with the url just pointing to my script)

This is working fine and doing what I want it do, however everytime this runs it is creating a new file in my root (public_html) and they are all numbered like 10, 10.1, 10.2, 10.3 etc.

Does anybody know how I can stop these being created?

Also if this is bad practice and anybody wants to suggest a better way of doing something like this, any advice is greatly appreciated.

Answer 1

$cmd = "nohup wget -q <-url here-> -O /dev/null 2>&1 &")";
$exec = exec( 'bash -c "'.$cmd.'"' );

note the -O flag, with which you tell wget where to save the downloaded file. with this, you direct it to /dev/null and therefore delete it.