Where to add url from custom field to ping on publish
i have a custom field for source-links. The URL inserted in this custom field should get pinged once the post gets published. I know there is a dedicated trackback field but i want the URL from the custom field automatically added.
As far as i understand,
$add_pingis exactly that.
My problem is: i don’t know where to add it. I imagine if i’d write this into my theme where i display the source-link, the source gets pinged everytime the post gets visited.
So whats the proper way to add a an url to get pinged on publish?
Your help is very appreciated and merry christmas/happy holidays to everyone!
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