How to disable script execution except for cron?

Question

PHP

It is necessary to prohibit the execution of the script (direct transition), while having the cron run this script. Is it possible to?

Answer 1

if (PHP_SAPI != 'cli'){
  die('Не консоль');
}

Answer 2

Maybe. The server runs under its www-data user, you run crons on your behalf, so you need to set the appropriate execution rights (750 if I'm not mistaken).
chmod 0750 file.php