cPanel Cron Intermediate

Cron jobs in cPanel: schedule PHP and maintenance

Create cron jobs in cPanel, understand cron timing syntax, run PHP scripts safely, control email output, and debug jobs that do not run as expected.

UnderHost NOC Network Operations

8 min read Updated June 2026

On this page

When to use cron
Add a cron job
Timing syntax
Run PHP scripts
Email and logging
Troubleshooting

Cron jobs run commands automatically on a schedule. In cPanel, they are commonly used for application maintenance, queue processing, report generation, cache cleanup, and replacing WordPress pseudo-cron with a real scheduled task.

When to use cron

Run a PHP maintenance script every hour or every day.
Trigger WordPress wp-cron.php on a reliable schedule.
Process email queues, invoices, imports, or cleanup tasks.
Generate reports outside peak visitor hours.

Avoid running jobs every minute unless the application truly requires it. Frequent jobs can create unnecessary CPU and process usage on shared hosting.

Add a cron job in cPanel

Log in to cPanel.
Open Advanced and choose Cron Jobs.
Set the cron email address, or leave output redirected to a log file instead.
Choose a common schedule or enter custom timing values.
Enter the command.
Click Add New Cron Job.

Timing syntax

# minute hour day-of-month month day-of-week command
0 * * * *        command   # every hour
0 2 * * *        command   # every day at 2:00
0 2 * * 0        command   # every Sunday at 2:00
*/15 * * * *     command   # every 15 minutes

cPanel's common settings dropdown is safer if you are not comfortable writing cron syntax manually.

Run PHP scripts

Use the full PHP binary path and the full script path. Relative paths often fail because cron does not run from your website directory.

/usr/local/bin/php /home/username/public_html/scripts/task.php

# WordPress example
/usr/local/bin/php /home/username/public_html/wp-cron.php

If your server exposes multiple PHP versions, use the PHP path shown by cPanel or ask support which binary matches the domain's selected PHP version.

Email and logging

Cron emails command output to the configured address. For routine jobs, redirect output to a log file so your mailbox is not flooded:

/usr/local/bin/php /home/username/public_html/task.php >> /home/username/cron-task.log 2>&1

Review and rotate log files periodically so they do not grow without limit.

Troubleshooting cron jobs

Problem	What to check
No output	Temporarily remove output redirection or send output to a log file.
Script not found	Use an absolute path such as `/home/username/public_html/script.php`.
Wrong PHP version	Use the PHP binary that matches the domain's configured version.
Permission denied	Check file permissions and whether the script is readable by your account user.
Job causes high usage	Run it less frequently, optimize the script, or move heavy tasks to VPS/dedicated hosting.