How to get blog id from permalink?

Question

I need to get blog ids (or site ids) on my multisite, from permalinks.

THIS PROBLEM IS NOT A PLUGIN SPECIFIC, but here the full story: I listed the all network posts on my multisite to my network-home's homepage with "WDS Multisite Aggregate" plugin. This works fine, and the "aggregated" post's permalink's shows to the parent post's. (thus clarifying: The child posts will link back to the parent post.)

So, I have posts on my network's home with permalinks to the subsite's posts.

I want to get from these links the publisher subsite's id, because if I know these site's ids, I can get the publisher site's homeurl, like this:

$myblogid = [MISSING CODE, wherewith I get blog id from permalink] $mysuburl = get_home_url( $myblogid );

If I use the get_current_blog_id(), these getting the network's home id.

I know that, possible get blog id from url thus:

$blog_id = get_blog_id_from_url("example.com", "/blog1/"); or $blog_id = get_blog_id_from_url("blog1.example.com");

but this not working with post's permalinks, just only with blog urls.

very simplified: I have a permalink what this: subsite.network.com/post-url Now I want getting this: subsite.network.com

Answer 1

the plugin "WDS Multisite Aggregate" store the blog identifier in a meta of the cloned post. then in the template file wich display the cloned posts, you can retrieve the home url of the original website with that :

$blogid = $GLOBALS["post"]->blogid;
$blog_details = get_blog_details($blogid);
// the home URL is in $blog_details->home

I hope this is what you need because calculating the original post identifier from the permalink consumes considerably more ressources.