usage examples

Simple usage
To execute cli script every day at midnight n your controller you should put following code:
$this->load->library('crontab');
$this->crontab->add_job('0 0 * * *', 'cli_script.php');
This code will execute cli_script.php located in directory you’ve set up in config file at 0 minutes 0 hour

Advanced usage

Assuming you have in your $POST[‘time’] time when scheduled action should be performed.
$this->load->library('crontab');<br />
$time = $this->crontab->translate_timestamp(strtotime($this->input->post('time')), 's i G * *');
$this->crontab->add_job($time, 'cliscript.php’);

If you want to perform an action every day after user submit a data:
$this->load->library('crontab');
$time = $this->crontab->translate_timestamp(time(), 's i G * *');
$this->crontab->add_job($time, 'cli_script.php');