do_action( ‘add_user_to_blog’, int $user_id, string $role, int $blog_id )

User Contributed Notes

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   LumberHack 10 years ago

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   Here is a use case when you may need to add users to common sites (forums, support trackers etc ) on the network apart from the main site and their own site(s).

   /**
    * Add a user to network sites.
    *
    * @param int $user_id User ID.
    */
   function wpdocs_add_user_to_network_sites( $user_id ) {
   
   	// Put common sites here
   	$blogs = array( 1, 2, 3, 5,8 ); 
     
   	foreach ( $blogs as $blog ) {
   		add_user_to_blog( $user_id, $blog, 'subscriber' );
   	}
   }
   add_action( 'user_register', 'wpdocs_add_user_to_network_sites' );