问题
I would like to call a cron job from within a PHP script. I am assuming this is the correct and most efficient solution to my problem.
Background:
I want to run a script that uses a user's inputted password before I store it in the database with 1 way encryption.
I also want to make sure the entire script runs even if the user leaves my site.
There are either two possibilities.
1.) Create a two way encrypted password that I can run later in the evening through cron (probably not secure, but any suggestions would be appreciated).
2.) Create a cron job on the fly using PHP to use the user's password before I store it in 1 way encryption.
Assuming #1 is not possible (or not secure), how would I call a cron job on the fly using php? If this isn't the only solution, how can i run a PHP file that will finish running if the user leaves my page?
回答1:
You don't want to start a CRON job, but a background command. Execute a shell from PHP, and pass it a command like this:
bash -c 'mycommand & exit';
来源：https://stackoverflow.com/questions/4918982/what-is-the-code-to-call-a-cron-job-from-php