How to set up a cron job via PHP (not CPanel)?
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- dongyan5641 2011-01-22 01:07关注
Most Linux systems with
crond
installed provides a few directories you can set up jobs with:/etc/cron.d/ /etc/cron.daily/ /etc/cron.weekly/ /etc/cron.monthly/ ...
The idea here is to create a file in one of these directories. You will need to set the proper permissions/ownership to those (or one of those) directories so that the user launching the PHP script can write to it (Apache user if it's a web script, or whatever CLI user if CLI is used).
The easiest thing is to create an empty file, assign proper permission/ownership to it, and have the PHP script append/modify it.
Per example:
$ touch /etc/cron.d/php-crons $ chown www-data /etc/cron.d/php-crons
Then in PHP:
$fp = fopen('/etc/cron.d/php-crons', 'a'); fwrite($fp, '* 23 * * * echo foobar'.PHP_EOL); fclose($fp);
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