PHP Exec and at command

Question

I am having trouble executing at command via php. When I start this job, it runs the 1st time and creates a queue job 1 minute from it finishes the Run Logic. The queued job runs at specified time but it will not create a new job queue 1 minute after it completes the Run Logic so it dies.

The pseudo logic is
//task_queue.php if(we_have_tasks){ Run Logic shell_exec('/usr/local/bin/php -f task_queue.php | at now + 1 minutes'); }

What am I doing wrong? Any help is appreciated. I thought if I used the 'at' command I'll be able to schedule jobs without overlapping.

Thanks

see this. http://stackoverflow.com/questions/4421020/use-php-to-create-edit-and-delete-crontab-jobs — Milap, Mar 14 '12 at 05:18

score 0 · Accepted Answer · answered Mar 14 '12 at 05:15

0

I think you meant to write shell_exec('echo "/usr/local/bin/php -f task_queue.php" | at now + 1 minutes'); no? The version you've got re-runs immediately.

answered Mar 14 '12 at 05:15

hobbs

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@hobbs I got the "PAM failure: System error" error in response. any comment, please? – Maulik patel Feb 24 '18 at 18:16

score 0 · Answer 2 · answered Mar 14 '12 at 10:31

0

You can try

exec('php /usr/local/bin/php -f task_queue.php | at now + 1 minutes');

answered Mar 14 '12 at 10:31

Taco

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PHP Exec and at command

2 Answers2