Determines if switch_to_blog() is in effect
wp_switch_roles_and_user
Switches the initialized roles and current user capabilities to another site.
restore_current_blog
Restore the current blog, after calling switch_to_blog().
switch_to_blog
Switch the current blog.
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update_blog_option
Update an option for a particular blog.
delete_blog_option
Removes option by name for a given blog id. Prevents removal of protected WordPress options.
add_blog_option
Add a new option for a given blog id.
get_blog_option
Retrieve option value for a given blog id based on name of option.
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clean_site_details_cache
Cleans the site details cache for a site.
update_blog_details
Update the details for a blog. Updates the blogs table for a given blog id.
refresh_blog_details
Clear the blog details cache.
get_blog_details
Retrieve the details for a blog from the blogs table and blog options.
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get_id_from_blogname
Retrieves a sites ID given its (subdomain or directory) slug.
get_blogaddress_by_name
Get a full blog URL, given a blog name.
get_blogaddress_by_id
Get a full blog URL, given a blog id.