I would really love to see an custom cronjobs system wich can be used in an script where you can add and remove and choose everything only in the php script like vBulletin and similar forum softwares have, so you don’t need to go to the server and set up cronjobs.
I am interested… email me from my profile page..
cPanel?
How That cronjobs works ??!!
The answer is very easy : it depends on the visitors of the site when any visitor come to your site it checks the existing time and the execution time : if execution time is less than existing time it start the execution operation, if not there is no execution.
It makes the site run little slow if you used this way , so using cronjobs manager in cpanel is very effective .
Hi there, I’ve just submit my PHP Cron item :
http://codecanyon.net/item/php-task-scheduler-php-cron/129473
Cheers 
