What are some common pitfalls to avoid when setting up a PHP cronjob to execute files remotely on a different server?

One common pitfall to avoid when setting up a PHP cronjob to execute files remotely on a different server is not specifying the full path to the PHP executable in the cronjob command. This can lead to the cronjob not being able to locate the PHP executable and failing to execute the file properly.

// Specify the full path to the PHP executable in the cronjob command
$command = "/usr/bin/php /path/to/remote/script.php";
exec($command);