Use the command line script ‘wget’ to run programs via http links.
Here is an example of the wget script in action:
wget -q -O /dev/null "http://mysite.com/cronjob.php" > /dev/null 2>&1
-O means that the output of the web request will be sent to STDOUT (standard output).
>/dev/null 2>&1 will instruct standard output to be redirect to a black hole. So no message from the executing program are returned to the screen.
Below is a screenshot of using wget for a cron job in cPanel :