Title: Functions | Page 43 of 49 | Developer.WordPress.org

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# Functions

 * function[meta_box_prefs()](https://developer.wordpress.org/reference/functions/meta_box_prefs/)
 * Prints the meta box preferences for screen meta.
 * Used by [1 function](https://developer.wordpress.org/reference/functions/meta_box_prefs/#used-by)
   | Uses [4 functions](https://developer.wordpress.org/reference/functions/meta_box_prefs/#uses)
   | Source: [wp-admin/includes/screen.php:96](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/screen.php#L96-L142)
 * function[meta_form()](https://developer.wordpress.org/reference/functions/meta_form/)
 * Prints the form in the Custom Fields meta box.
 * Used by [1 function](https://developer.wordpress.org/reference/functions/meta_form/#used-by)
   | Uses [14 functions](https://developer.wordpress.org/reference/functions/meta_form/#uses)
   | Source: [wp-admin/includes/template.php:692](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/template.php#L692-L791)
 * function[move_dir()](https://developer.wordpress.org/reference/functions/move_dir/)
 * Moves a directory from one location to another.
 * Used by [3 functions](https://developer.wordpress.org/reference/functions/move_dir/#used-by)
   | Uses [5 functions](https://developer.wordpress.org/reference/functions/move_dir/#uses)
   | Source: [wp-admin/includes/file.php:2096](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/file.php#L2096-L2146)
 * function[ms_allowed_http_request_hosts()](https://developer.wordpress.org/reference/functions/ms_allowed_http_request_hosts/)
 * Adds any domain in a multisite installation for safe HTTP requests to the allowed
   list.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/ms_allowed_http_request_hosts/#used-by)
   | Uses [3 functions](https://developer.wordpress.org/reference/functions/ms_allowed_http_request_hosts/#uses)
   | Source: [wp-includes/http.php:687](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/http.php#L687-L701)
 * function[ms_cookie_constants()](https://developer.wordpress.org/reference/functions/ms_cookie_constants/)
 * Defines Multisite cookie constants.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/ms_cookie_constants/#used-by)
   | Uses [3 functions](https://developer.wordpress.org/reference/functions/ms_cookie_constants/#uses)
   | Source: [wp-includes/ms-default-constants.php:52](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/ms-default-constants.php#L52-L91)
 * function[ms_deprecated_blogs_file()](https://developer.wordpress.org/reference/functions/ms_deprecated_blogs_file/)
 * Deprecated functionality for determining whether a file is deprecated.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/ms_deprecated_blogs_file/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/ms_deprecated_blogs_file/#uses)
   | Source: [wp-admin/includes/ms-deprecated.php:110](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/ms-deprecated.php#L110-L110)
 * function[ms_file_constants()](https://developer.wordpress.org/reference/functions/ms_file_constants/)
 * Defines Multisite file constants.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/ms_file_constants/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/ms_file_constants/#uses)
   | Source: [wp-includes/ms-default-constants.php:101](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/ms-default-constants.php#L101-L119)
 * function[ms_is_switched()](https://developer.wordpress.org/reference/functions/ms_is_switched/)
 * Determines if switch_to_blog() is in effect.
 * Used by [3 functions](https://developer.wordpress.org/reference/functions/ms_is_switched/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/ms_is_switched/#uses)
   | Source: [wp-includes/ms-blogs.php:720](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/ms-blogs.php#L720-L722)
 * function[ms_load_current_site_and_network()](https://developer.wordpress.org/reference/functions/ms_load_current_site_and_network/)
 * Identifies the network and site of a requested domain and path and populates 
   the corresponding network and site global objects as part of the multisite bootstrap
   process.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/ms_load_current_site_and_network/#used-by)
   | Uses [10 functions](https://developer.wordpress.org/reference/functions/ms_load_current_site_and_network/#uses)
   | Source: [wp-includes/ms-load.php:297](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/ms-load.php#L297-L450)
 * function[ms_not_installed()](https://developer.wordpress.org/reference/functions/ms_not_installed/)
 * Displays a failure message.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/ms_not_installed/#used-by)
   | Uses [9 functions](https://developer.wordpress.org/reference/functions/ms_not_installed/#uses)
   | Source: [wp-includes/ms-load.php:466](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/ms-load.php#L466-L512)
 * function[ms_site_check()](https://developer.wordpress.org/reference/functions/ms_site_check/)
 * Checks status of current blog.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/ms_site_check/#used-by)
   | Uses [7 functions](https://developer.wordpress.org/reference/functions/ms_site_check/#uses)
   | Source: [wp-includes/ms-load.php:74](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/ms-load.php#L74-L127)
 * function[ms_subdomain_constants()](https://developer.wordpress.org/reference/functions/ms_subdomain_constants/)
 * Defines Multisite subdomain constants and handles warnings and notices.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/ms_subdomain_constants/#used-by)
   | Uses [3 functions](https://developer.wordpress.org/reference/functions/ms_subdomain_constants/#uses)
   | Source: [wp-includes/ms-default-constants.php:131](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/ms-default-constants.php#L131-L183)
 * function[ms_upload_constants()](https://developer.wordpress.org/reference/functions/ms_upload_constants/)
 * Defines Multisite upload constants.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/ms_upload_constants/#used-by)
   | Uses [3 functions](https://developer.wordpress.org/reference/functions/ms_upload_constants/#uses)
   | Source: [wp-includes/ms-default-constants.php:18](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/ms-default-constants.php#L18-L45)
 * function[multisite_over_quota_message()](https://developer.wordpress.org/reference/functions/multisite_over_quota_message/)
 * Displays the out of storage quota message in Multisite.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/multisite_over_quota_message/#used-by)
   | Uses [3 functions](https://developer.wordpress.org/reference/functions/multisite_over_quota_message/#uses)
   | Source: [wp-admin/includes/media.php:3104](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/media.php#L3104-L3110)
 * function[mu_dropdown_languages()](https://developer.wordpress.org/reference/functions/mu_dropdown_languages/)
 * Generates and displays a drop-down of available languages.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/mu_dropdown_languages/#used-by)
   | Uses [6 functions](https://developer.wordpress.org/reference/functions/mu_dropdown_languages/#uses)
   | Source: [wp-admin/includes/ms.php:633](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/ms.php#L633-L673)
 * function[mu_options()](https://developer.wordpress.org/reference/functions/mu_options/)
 * WPMU options.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/mu_options/#used-by)
   | Uses [1 function](https://developer.wordpress.org/reference/functions/mu_options/#uses)
   | Source: [wp-admin/includes/ms-deprecated.php:46](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/ms-deprecated.php#L46-L49)
 * function[mysql2date()](https://developer.wordpress.org/reference/functions/mysql2date/)
 * Converts given MySQL date string into a different format.
 * Used by [29 functions](https://developer.wordpress.org/reference/functions/mysql2date/#used-by)
   | Uses [2 functions](https://developer.wordpress.org/reference/functions/mysql2date/#uses)
   | Source: [wp-includes/functions.php:35](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/functions.php#L35-L57)
 * function[mysql_to_rfc3339()](https://developer.wordpress.org/reference/functions/mysql_to_rfc3339/)
 * Parses and formats a MySQL datetime (Y-m-d H:i:s) for ISO8601 (Y-m-d\TH:i:s).
 * Used by [4 functions](https://developer.wordpress.org/reference/functions/mysql_to_rfc3339/#used-by)
   | Uses [1 function](https://developer.wordpress.org/reference/functions/mysql_to_rfc3339/#uses)
   | Source: [wp-includes/functions.php:7825](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/functions.php#L7825-L7827)
 * function[network_admin_url()](https://developer.wordpress.org/reference/functions/network_admin_url/)
 * Retrieves the URL to the admin area for the network.
 * Used by [38 functions](https://developer.wordpress.org/reference/functions/network_admin_url/#used-by)
   | Uses [4 functions](https://developer.wordpress.org/reference/functions/network_admin_url/#uses)
   | Source: [wp-includes/link-template.php:3830](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/link-template.php#L3830-L3854)
 * function[network_domain_check()](https://developer.wordpress.org/reference/functions/network_domain_check/)
 * Check for an existing network.
 * Used by [1 function](https://developer.wordpress.org/reference/functions/network_domain_check/#used-by)
   | Uses [3 functions](https://developer.wordpress.org/reference/functions/network_domain_check/#uses)
   | Source: [wp-admin/includes/network.php:19](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/network.php#L19-L27)
 * function[network_edit_site_nav()](https://developer.wordpress.org/reference/functions/network_edit_site_nav/)
 * Outputs the HTML for a network’s “Edit Site” tabular interface.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/network_edit_site_nav/#used-by)
   | Uses [10 functions](https://developer.wordpress.org/reference/functions/network_edit_site_nav/#uses)
   | Source: [wp-admin/includes/ms.php:1045](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/ms.php#L1045-L1139)
 * function[network_home_url()](https://developer.wordpress.org/reference/functions/network_home_url/)
 * Retrieves the home URL for the current network.
 * Used by [12 functions](https://developer.wordpress.org/reference/functions/network_home_url/#used-by)
   | Uses [6 functions](https://developer.wordpress.org/reference/functions/network_home_url/#uses)
   | Source: [wp-includes/link-template.php:3784](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/link-template.php#L3784-L3818)
 * function[network_settings_add_js()](https://developer.wordpress.org/reference/functions/network_settings_add_js/)
 * Prints JavaScript in the header on the Network Settings screen.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/network_settings_add_js/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/network_settings_add_js/#uses)
   | Source: [wp-admin/includes/ms.php:1011](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/ms.php#L1011-L1028)
 * function[network_site_url()](https://developer.wordpress.org/reference/functions/network_site_url/)
 * Retrieves the site URL for the current network.
 * Used by [8 functions](https://developer.wordpress.org/reference/functions/network_site_url/#used-by)
   | Uses [5 functions](https://developer.wordpress.org/reference/functions/network_site_url/#uses)
   | Source: [wp-includes/link-template.php:3739](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/link-template.php#L3739-L3768)
 * function[network_step1()](https://developer.wordpress.org/reference/functions/network_step1/)
 * Prints step 1 for Network installation process.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/network_step1/#used-by)
   | Uses [17 functions](https://developer.wordpress.org/reference/functions/network_step1/#uses)
   | Source: [wp-admin/includes/network.php:113](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/network.php#L113-L397)
 * function[network_step2()](https://developer.wordpress.org/reference/functions/network_step2/)
 * Prints step 2 for Network installation process.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/network_step2/#used-by)
   | Uses [22 functions](https://developer.wordpress.org/reference/functions/network_step2/#uses)
   | Source: [wp-admin/includes/network.php:409](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/network.php#L409-L743)
 * function[newblog_notify_siteadmin()](https://developer.wordpress.org/reference/functions/newblog_notify_siteadmin/)
 * Notifies the network admin that a new site has been activated.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/newblog_notify_siteadmin/#used-by)
   | Uses [12 functions](https://developer.wordpress.org/reference/functions/newblog_notify_siteadmin/#uses)
   | Source: [wp-includes/ms-functions.php:1464](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/ms-functions.php#L1464-L1516)
 * function[newuser_notify_siteadmin()](https://developer.wordpress.org/reference/functions/newuser_notify_siteadmin/)
 * Notifies the network admin that a new user has been activated.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/newuser_notify_siteadmin/#used-by)
   | Uses [9 functions](https://developer.wordpress.org/reference/functions/newuser_notify_siteadmin/#uses)
   | Source: [wp-includes/ms-functions.php:1529](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/ms-functions.php#L1529-L1572)
 * function[new_user_email_admin_notice()](https://developer.wordpress.org/reference/functions/new_user_email_admin_notice/)
 * Adds an admin notice alerting the user to check for confirmation request email
   after email address change.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/new_user_email_admin_notice/#used-by)
   | Uses [5 functions](https://developer.wordpress.org/reference/functions/new_user_email_admin_notice/#uses)
   | Source: [wp-includes/user.php:3917](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L3917-L3931)
 * function[next_comments_link()](https://developer.wordpress.org/reference/functions/next_comments_link/)
 * Displays the link to the next comments page.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/next_comments_link/#used-by)
   | Uses [1 function](https://developer.wordpress.org/reference/functions/next_comments_link/#uses)
   | Source: [wp-includes/link-template.php:3187](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/link-template.php#L3187-L3189)

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