Send a confirmation request email to a user when they sign up for a new site. The new site will not become active until the confirmation link is clicked.
wpmu_signup_user
Record user signup information for future activation.
wpmu_signup_blog
Record site signup information for future activation.
wpmu_validate_blog_signup
Filters site details and error messages following registration.
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newblogname
Filters the new site name during registration.
wpmu_validate_blog_signup
Processes new site registrations.
wpmu_validate_user_signup
Filters the validated user registration details.
wpmu_validate_user_signup
Sanitize and validate data required for a user sign-up.
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is_email_address_unsafe
Checks an email address against a list of banned domains.
get_blog_id_from_url
Get a blog’s numeric ID from its URL.
remove_user_from_blog
Remove a user from a blog.
remove_user_from_blog
Fires before a user is removed from a site.
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add_user_to_blog
Fires immediately after a user is added to a site.
add_user_to_blog
Adds a user to a blog.
get_blog_post
Get a blog post from any site on the network.
