New and updated in MU
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hookwpmu_new_user
Fires immediately after a new user is created.
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functionwpmu_create_blog()
Creates a site.
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hookwpmu_new_blog
Fires immediately after a new site is created.
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functionnewblog_notify_siteadmin()
Notifies the network admin that a new site has been activated.
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Filters the message body of the new site activation email sent to the network administrator.
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functionnewuser_notify_siteadmin()
Notifies the network admin that a new user has been activated.
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Filters the message body of the new user activation email sent to the network administrator.
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functiondomain_exists()
Checks whether a site name is already taken.
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functionwpmu_signup_user_notification()
Sends a confirmation request email to a user when they sign up for a new user account (without signing up for a site at the same time). The user account will not become active until the confirmation link is clicked.
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Filters whether to bypass the email notification for new user sign-up.
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Filters the content of the notification email for new user sign-up.
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Filters the subject of the notification email of new user signup.
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functionis_email_address_unsafe()
Checks an email address against a list of banned domains.
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functionwpmu_validate_user_signup()
Sanitizes and validates data required for a user sign-up.
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Filters the validated user registration details.
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functionwpmu_validate_blog_signup()
Processes new site registrations.
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hooknewblogname
Filters the new site name during registration.
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Filters site details and error messages following registration.
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functionwpmu_signup_blog()
Records site signup information for future activation.
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functionwpmu_signup_user()
Records user signup information for future activation.
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functionwpmu_signup_blog_notification()
Sends 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.
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Filters whether to bypass the new site email notification.
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Filters the message content of the new blog notification email.
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Filters the subject of the new blog notification email.
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hookadd_user_to_blog
Fires immediately after a user is added to a site.
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Fires before a user is removed from a site.
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functionget_user_id_from_string()
Get a numeric user ID from either an email address or a login.
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functionget_blogaddress_by_domain()
Get a full site URL, given a domain and a path.
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functiongenerate_random_password()
Generates a random password.
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functionis_site_admin()
Determine if user is a site admin.