About a system background command that will not be automatically kicked out

This is what it looks like:

php dingdan_money.php >> ./log/jd11.csv < /dev/null &

If you write it like this:

php dingdan_money.php >> ./ log/jd11.csv > /dev/null &

Then the script will exit immediately. I don’t know why, but it has been verified that the first way of writing above is OK.

The above introduces a system background command that will not be automatically kicked out, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.