Title: wp-includes/functions.php | Page 3 of 10 | Developer.WordPress.org --- # File: wp-includes/functions.php * function[wp_get_direct_php_update_url()](https://developer.wordpress.org/reference/functions/wp_get_direct_php_update_url/) * Gets the URL for directly updating the PHP version the site is running on. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_get_direct_php_update_url/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_get_direct_php_update_url/#uses) | Source: [wp-includes/functions.php:8756](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8756-L8773) * hook[wp_direct_php_update_url](https://developer.wordpress.org/reference/hooks/wp_direct_php_update_url/) * Filters the URL for directly updating the PHP version the site is running on from the host. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_direct_php_update_url/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_direct_php_update_url/#uses) | Source: [wp-includes/functions.php:8770](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8770-L8770) * function[wp_direct_php_update_button()](https://developer.wordpress.org/reference/functions/wp_direct_php_update_button/) * Displays a button directly linking to a PHP update process. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_direct_php_update_button/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/wp_direct_php_update_button/#uses) | Source: [wp-includes/functions.php:8784](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8784-L8800) * function[wp_get_default_update_php_url()](https://developer.wordpress.org/reference/functions/wp_get_default_update_php_url/) * Gets the default URL to learn more about updating the PHP version the site is running on. * Used by [2 functions](https://developer.wordpress.org/reference/functions/wp_get_default_update_php_url/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_get_default_update_php_url/#uses) | Source: [wp-includes/functions.php:8685](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8685-L8687) * function[wp_update_php_annotation()](https://developer.wordpress.org/reference/functions/wp_update_php_annotation/) * Prints the default annotation for the web host altering the “Update PHP” page URL. * Used by [8 functions](https://developer.wordpress.org/reference/functions/wp_update_php_annotation/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_update_php_annotation/#uses) | Source: [wp-includes/functions.php:8705](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8705-L8716) * function[wp_get_update_php_url()](https://developer.wordpress.org/reference/functions/wp_get_update_php_url/) * Gets the URL to learn more about updating the PHP version the site is running on. * Used by [15 functions](https://developer.wordpress.org/reference/functions/wp_get_update_php_url/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/wp_get_update_php_url/#uses) | Source: [wp-includes/functions.php:8646](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8646-L8671) * hook[wp_update_php_url](https://developer.wordpress.org/reference/hooks/wp_update_php_url/) * Filters the URL to learn more about updating the PHP version the site is running on. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_update_php_url/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_update_php_url/#uses) | Source: [wp-includes/functions.php:8664](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8664-L8664) * function[is_site_meta_supported()](https://developer.wordpress.org/reference/functions/is_site_meta_supported/) * Determines whether site meta is enabled. * Used by [4 functions](https://developer.wordpress.org/reference/functions/is_site_meta_supported/#used-by) | Uses [5 functions](https://developer.wordpress.org/reference/functions/is_site_meta_supported/#uses) | Source: [wp-includes/functions.php:6649](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L6649-L6666) * function[wp_parse_list()](https://developer.wordpress.org/reference/functions/wp_parse_list/) * Converts a comma- or space-separated list of scalar values to an array. * Used by [13 functions](https://developer.wordpress.org/reference/functions/wp_parse_list/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/functions/wp_parse_list/#uses) | Source: [wp-includes/functions.php:5041](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L5041-L5051) * function[_json_wp_die_handler()](https://developer.wordpress.org/reference/functions/_json_wp_die_handler/) * Kills WordPress execution and displays JSON response with an error message. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_json_wp_die_handler/#used-by) | Uses [4 functions](https://developer.wordpress.org/reference/functions/_json_wp_die_handler/#uses) | Source: [wp-includes/functions.php:4153](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L4153-L4181) * function[_wp_die_process_input()](https://developer.wordpress.org/reference/functions/_wp_die_process_input/) * Processes arguments passed to wp_die() consistently for its handlers. * Used by [7 functions](https://developer.wordpress.org/reference/functions/_wp_die_process_input/#used-by) | Uses [5 functions](https://developer.wordpress.org/reference/functions/_wp_die_process_input/#uses) | Source: [wp-includes/functions.php:4354](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L4354-L4427) * hook[wp_die_json_handler](https://developer.wordpress.org/reference/hooks/wp_die_json_handler/) * Filters the callback for killing WordPress execution for JSON requests. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_die_json_handler/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_die_json_handler/#uses) | Source: [wp-includes/functions.php:3847](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L3847-L3847) * function[human_readable_duration()](https://developer.wordpress.org/reference/functions/human_readable_duration/) * Converts a duration to human readable format. * Used by [2 functions](https://developer.wordpress.org/reference/functions/human_readable_duration/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/human_readable_duration/#uses) | Source: [wp-includes/functions.php:512](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L512-L571) * function[wp_unique_id()](https://developer.wordpress.org/reference/functions/wp_unique_id/) * Gets unique ID. * Used by [3 functions](https://developer.wordpress.org/reference/functions/wp_unique_id/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/functions/wp_unique_id/#uses) | Source: [wp-includes/functions.php:8156](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8156-L8159) * function[wp_privacy_delete_old_export_files()](https://developer.wordpress.org/reference/functions/wp_privacy_delete_old_export_files/) * Cleans up export files older than three days old. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_privacy_delete_old_export_files/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/wp_privacy_delete_old_export_files/#uses) | Source: [wp-includes/functions.php:8604](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8604-L8632) * hook[wp_privacy_export_expiration](https://developer.wordpress.org/reference/hooks/wp_privacy_export_expiration/) * Filters the lifetime, in seconds, of a personal data export file. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/wp_privacy_export_expiration/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_privacy_export_expiration/#uses) | Source: [wp-includes/functions.php:8623](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8623-L8623) * function[wp_privacy_exports_dir()](https://developer.wordpress.org/reference/functions/wp_privacy_exports_dir/) * Returns the directory used to store personal data export files. * Used by [2 functions](https://developer.wordpress.org/reference/functions/wp_privacy_exports_dir/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/wp_privacy_exports_dir/#uses) | Source: [wp-includes/functions.php:8505](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8505-L8519) * hook[wp_privacy_exports_dir](https://developer.wordpress.org/reference/hooks/wp_privacy_exports_dir/) * Filters the directory used to store personal data export files. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_privacy_exports_dir/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_privacy_exports_dir/#uses) | Source: [wp-includes/functions.php:8518](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8518-L8518) * function[wp_privacy_exports_url()](https://developer.wordpress.org/reference/functions/wp_privacy_exports_url/) * Returns the URL of the directory used to store personal data export files. * Used by [3 functions](https://developer.wordpress.org/reference/functions/wp_privacy_exports_url/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/wp_privacy_exports_url/#uses) | Source: [wp-includes/functions.php:8530](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8530-L8544) * hook[wp_privacy_exports_url](https://developer.wordpress.org/reference/hooks/wp_privacy_exports_url/) * Filters the URL of the directory used to store personal data export files. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_privacy_exports_url/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_privacy_exports_url/#uses) | Source: [wp-includes/functions.php:8543](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8543-L8543) * function[wp_schedule_delete_old_privacy_export_files()](https://developer.wordpress.org/reference/functions/wp_schedule_delete_old_privacy_export_files/) * Schedules a `WP_Cron` job to delete expired export files. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_schedule_delete_old_privacy_export_files/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/wp_schedule_delete_old_privacy_export_files/#uses) | Source: [wp-includes/functions.php:8551](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8551-L8559) * function[wp_privacy_anonymize_ip()](https://developer.wordpress.org/reference/functions/wp_privacy_anonymize_ip/) * Returns an anonymized IPv4 or IPv6 address. * Used by [2 functions](https://developer.wordpress.org/reference/functions/wp_privacy_anonymize_ip/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/functions/wp_privacy_anonymize_ip/#uses) | Source: [wp-includes/functions.php:8383](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8383-L8445) * function[wp_privacy_anonymize_data()](https://developer.wordpress.org/reference/functions/wp_privacy_anonymize_data/) * Returns uniform “anonymous” data by type. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_privacy_anonymize_data/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/wp_privacy_anonymize_data/#uses) | Source: [wp-includes/functions.php:8456](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8456-L8494) * hook[wp_privacy_anonymize_data](https://developer.wordpress.org/reference/hooks/wp_privacy_anonymize_data/) * Filters the anonymous data for each type. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_privacy_anonymize_data/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_privacy_anonymize_data/#uses) | Source: [wp-includes/functions.php:8493](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8493-L8493) * function[wp_delete_file_from_directory()](https://developer.wordpress.org/reference/functions/wp_delete_file_from_directory/) * Deletes a file if its path is within the given directory. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_delete_file_from_directory/#used-by) | Uses [4 functions](https://developer.wordpress.org/reference/functions/wp_delete_file_from_directory/#uses) | Source: [wp-includes/functions.php:7876](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L7876-L7898) * function[wp_is_uuid()](https://developer.wordpress.org/reference/functions/wp_is_uuid/) * Validates that a UUID is valid. * Used by [4 functions](https://developer.wordpress.org/reference/functions/wp_is_uuid/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/wp_is_uuid/#uses) | Source: [wp-includes/functions.php:8124](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8124-L8141) * function[wp_site_admin_email_change_notification()](https://developer.wordpress.org/reference/functions/wp_site_admin_email_change_notification/) * Sends an email to the old site admin email address when the site admin email address changes. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_site_admin_email_change_notification/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/wp_site_admin_email_change_notification/#uses) | Source: [wp-includes/functions.php:8285](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8285-L8371) * hook[send_site_admin_email_change_email](https://developer.wordpress.org/reference/hooks/send_site_admin_email_change_email/) * Filters whether to send the site admin email change notification email. * Used by [1 function](https://developer.wordpress.org/reference/hooks/send_site_admin_email_change_email/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/send_site_admin_email_change_email/#uses) | Source: [wp-includes/functions.php:8302](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8302-L8302) * hook[site_admin_email_change_email](https://developer.wordpress.org/reference/hooks/site_admin_email_change_email/) * Filters the contents of the email notification sent when the site admin email address is changed. * Used by [1 function](https://developer.wordpress.org/reference/hooks/site_admin_email_change_email/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/site_admin_email_change_email/#uses) | Source: [wp-includes/functions.php:8355](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L8355-L8355) * function[get_main_site_id()](https://developer.wordpress.org/reference/functions/get_main_site_id/) * Gets the main site ID. * Used by [2 functions](https://developer.wordpress.org/reference/functions/get_main_site_id/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/get_main_site_id/#uses) | Source: [wp-includes/functions.php:6562](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/functions.php#L6562-L6573) [Previous Page](https://developer.wordpress.org/reference/files/wp-includes/functions.php/page/2/?output_format=md) 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