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SoftSolutions4U
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How to Modify Wordpress Cron?
Presented By:
Santhanam
http://softsolutions4u.com
info@softsolutions4u.com

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What a cron job does?

A cron job is a task that is set to run at a
specified interval.

It’s available on all Unix-based system (OS X
included) and most web hosts.

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When we need Cron Jobs?

If you’re looking for a way to execute a
command several times a day or certain time of
day or certain time of the week, month, or
whatever else.

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What is WordPress Cron Jobs?

We can schedule an event to be executed at
certain intervals, but it doesn’t operate like a
classical cron job.

Instead, the event is set and scheduled and
written to the database. Next time a user opens
the site, the WordPress cron system will look if
an event is scheduled, if so, will fire the event.

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Problem in Wordpress Cron

The problem is, someone has to visit the site
before the event actually start. So if you’ve
scheduled something to happen hourly, but no
one has visited your site in the last hour, then
the event will be never fired.

Example Case:
* Admin uploads the files to server
* Checks whether the file exists
* If file exits, read file and update the records and delete file.
* The above actions have to be executed every hour.

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Solution??

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
Disable the WP Cron System

Setup event code using wp_schedule_event
in your plugin or in template

Setup classic cron job

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Disable WP Cron

In wp-config.php file
define('DISABLE_WP_CRON', true);

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Setup Event Code

Add Event Action
add_action( 'my_hourly_event', 'update_db_hourly' );

Schedule the event
if( !wp_next_scheduled( 'my_hourly_event' ) ) {
wp_schedule_event( time(), 'hourly',
'my_hourly_event' );
}

Event method

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Setup Classic Cron Job
/15 * * * wget -q -O -
http://yourdomain.com/wp-cron.php?doing_wp_cron

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Setup Classic Cron Job
And your new Cron Job is ready to go
For further information
Contact:
info@softsolutions4u.com