File: wp-includes/ms-functions.php
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functionwelcome_user_msg_filter()
Ensures that the welcome message is not empty. Currently unused.
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functionforce_ssl_content()
Determines whether to force SSL on content.
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Filters the redirect URL for 404s on the main site.
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functionfilter_SSL()
Formats a URL to use https.
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Adds a new user to a blog by visiting /newbloguser/{key}/.
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Schedules update of the network-wide counts for the current network.
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functionadd_existing_user_to_blog()
Adds a user to a blog based on details from maybe_add_existing_user_to_blog().
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functionwp_update_network_counts()
Updates the network-wide counts for the current network.
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Fires immediately after an existing user is added to a site.
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Updates the count of sites for the current network.
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functionadd_new_user_to_blog()
Adds a newly created user to the appropriate blog
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Filters whether to update network site or user counts when a new site is created.
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functionfix_phpmailer_messageid()
Corrects From host on outgoing mail to match the site domain.
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Updates the network-wide users count.
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functionredirect_this_site()
Ensures that the current site’s domain is listed in the allowed redirect host list.
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Filters the subject of the welcome email sent to the site administrator after site activation.
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functionupload_is_file_too_big()
Checks whether an upload is too big.
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functionwpmu_welcome_user_notification()
Notifies a user that their account activation has been successful.
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functionsignup_nonce_fields()
Adds a nonce field to the signup page.
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Filters whether to bypass the welcome email after user activation.
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functionsignup_nonce_check()
Processes the signup nonce created in signup_nonce_fields().
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Filters the content of the welcome email after user activation.
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functionmaybe_redirect_404()
Corrects 404 redirects when NOBLOGREDIRECT is defined.
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Filters the subject of the welcome email after user activation.
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functionget_current_site()
Gets the current network.
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functionget_most_recent_post_of_user()
Gets a user’s most recent post.
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functioncheck_upload_mimes()
Checks an array of MIME types against a list of allowed types.
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functionupdate_posts_count()
Updates a blog’s post count.
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functionwpmu_log_new_registrations()
Logs the user email, IP, and registration date of a new site.
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Filters the content of the welcome email sent to the site administrator after site activation.