WordPress hook directly after body tag

Question

I\'m having problems finding the right hook to use for my plugin. I\'m trying to add a message to the top of each page by having my plugin add a function. What\'s the best h

Answer 1

Changes, changes, changes. So it appears that since March 2019 (from WP 5.2) we have a little nicer way to do this.

There is a new function wp_body_open(). To support it, your theme has to call this function right after opening tag:

  

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And then you can use it in the same way you use wp_head or wp_footer hooks to print anything just after .