do_action( 'switch_blog', int $new_blog_id, int $prev_blog_id, string $context )

Fires when the blog is switched.

Parameters

$new_blog_id: New blog ID.
$prev_blog_id: Previous blog ID.
$context: Additional context. Accepts 'switch' when called from switch_to_blog() or 'restore' when called from restore_current_blog().

Used By
Used By	Description
wp-includes/ms-blogs.php: switch_to_blog()	Switches the current blog.
wp-includes/ms-blogs.php: restore_current_blog()	Restores the current blog, after calling switch_to_blog().

Changelog
Version	Description
5.4.0	The `$context` parameter was added.
MU (3.0.0)	Introduced. MU (3.0.0)