How to manually trigger pingback/trackback?

I would like to do something like this. I have some ‘pages’ that I want to pingback to other urls.

Has anybody figured out how to do this yet?

Clearly he never got an answer, but he was basically correct.

First you add a new row to the postmeta table with the id of the post and the _pingme key name. Like so:
INSERT INTO wp_postmeta (post_id,meta_key,meta_value) VALUES ('whatever the post id is','_pingme','1');

Now, with old versions, he may have been correct with spawn_pinger, but that’s changed in 2.1. Now you would do this with WordPress and some PHP code:
wp_schedule_single_event(time(), 'do_pings');

This will make it run the pings on its own time, and you don’t have to wait for it.

Otto,

I added a new row to the table. But I can’t find the wp_schedule_single_event() function. It isn’t there 2.1. I look at the previous revisions and I understand it used to be in wp-admin/upgrade-functions.php.

Actually, that function is new to 2.1. It’s the first function in cron.php, however you don’t include that directly. You need to include the blog itself, by including wp-blog-header.php. Then you can use that function.

I don’t have cron.php.

I also downloaded the latest release to check if I had missed some files during the upgrade, but no cron.php there either.

I don’t have cron.php.

Then you don’t have WordPress version 2.1 (or later). It’s in there.

I just downloaded it and took a look. And yep, it’s still in there.