What does -f stand for in "php -f" when running a cron job?

Question

What does the "-f" in say

* * * * * php -f myscript.php

stand for?

Answer 1

According to the PHP Command-Line options reference: http://php.net/manual/en/features.commandline.options.php the -f option indicates which file the PHP engine should execute, in this case myscript.php.