Make sure the php script can be only excecuted from command line (or as a cron job)

Question

This is the code I'm using, is it enough to make sure the script can be only run as a cron job? It sure does work but maybe there is something I have missed.

   if (php_sapi_name() !== 'cli') {
     die("You are not allwod here");
    }

Answer 1

Yes, that will work. I would also make sure the script is outside the root directory.