In my practice there are two simple solutions.
First:
0 0 1 * * php /home/USER/public_html/index.php NAME-OF-CONTROLLER NAME-OF-METHOD
example -> php /home/User/public_html/index.php TestCron index
Second:
0 0 1 * * curl –silent URL-OF-THE-SCRIPT
example -> curl –silent http://maratonkata.nikolaynikolov.net/TestCron