Question

I have this code:

<?php
    exec("sleep 15m; ls -l");
    echo "Done";
?>

But it gets stuck and won’t stop loading until 15 minutes have passed, is there anyway to not wait for the exec execution?

Answer 1

From PHP – exec

exec
…
Note:

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.

So you must redirect the output and start it in the background

exec("(sleep 15m; ls -l) >/dev/null 2>&1 &");