Title: wp-admin/includes/import.php | Developer.WordPress.org

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# File: wp-admin/includes/import.php

 * function[_usort_by_first_member()](https://developer.wordpress.org/reference/functions/_usort_by_first_member/)
 * Sorts a multidimensional array by first member of each top level member.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/_usort_by_first_member/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/_usort_by_first_member/#uses)
   | Source: [wp-admin/includes/import.php:37](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/import.php#L37-L39)
 * function[register_importer()](https://developer.wordpress.org/reference/functions/register_importer/)
 * Registers importer for WordPress.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/register_importer/#used-by)
   | Uses [1 function](https://developer.wordpress.org/reference/functions/register_importer/#uses)
   | Source: [wp-admin/includes/import.php:54](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/import.php#L54-L60)
 * function[wp_import_cleanup()](https://developer.wordpress.org/reference/functions/wp_import_cleanup/)
 * Cleanup importer.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_import_cleanup/#used-by)
   | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_import_cleanup/#uses)
   | Source: [wp-admin/includes/import.php:71](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/import.php#L71-L73)
 * function[wp_import_handle_upload()](https://developer.wordpress.org/reference/functions/wp_import_handle_upload/)
 * Handles importer uploading and adds attachment.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_import_handle_upload/#used-by)
   | Uses [5 functions](https://developer.wordpress.org/reference/functions/wp_import_handle_upload/#uses)
   | Source: [wp-admin/includes/import.php:82](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/import.php#L82-L129)
 * function[wp_get_popular_importers()](https://developer.wordpress.org/reference/functions/wp_get_popular_importers/)
 * Returns a list from WordPress.org of popular importer plugins.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_get_popular_importers/#used-by)
   | Uses [12 functions](https://developer.wordpress.org/reference/functions/wp_get_popular_importers/#uses)
   | Source: [wp-admin/includes/import.php:138](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/import.php#L138-L229)
 * function[get_importers()](https://developer.wordpress.org/reference/functions/get_importers/)
 * Retrieves the list of importers.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/get_importers/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/get_importers/#uses)
   | Source: [wp-admin/includes/import.php:17](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/import.php#L17-L23)