WP_Site_Health::should_suggest_persistent_object_cache()
wp-admin/includes/class-wp-site-health.php
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Determines whether to suggest using a persistent object cache.
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WP_Debug_Data::get_database_size()
wp-admin/includes/class-wp-debug-data.php
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Fetches the total size of all the database tables for the active database user.
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wp_is_site_initialized()
wp-includes/ms-site.php
|
Checks whether a site is initialized.
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WP_Privacy_Requests_Table::get_request_counts()
wp-admin/includes/class-wp-privacy-requests-table.php
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Count number of requests for each status.
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has_term_meta()
wp-includes/taxonomy.php
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Gets all meta data, including meta IDs, for the given term ID.
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WP_Term_Query::get_terms()
wp-includes/class-wp-term-query.php
|
Retrieves the query results.
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_prime_term_caches()
wp-includes/taxonomy.php
|
Adds any terms from the given IDs to the cache that do not already exist in cache.
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_prime_network_caches()
wp-includes/ms-network.php
|
Adds any networks from the given IDs to the cache that do not already exist in cache.
|
_prime_site_caches()
wp-includes/ms-site.php
|
Adds any sites from the given IDs to the cache that do not already exist in cache.
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wxr_term_meta()
wp-admin/includes/export.php
|
Outputs term meta XML tags for a given term object.
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WP_Term::get_instance()
wp-includes/class-wp-term.php
|
Retrieve WP_Term instance.
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_prime_comment_caches()
wp-includes/comment.php
|
Adds any comments from the given IDs to the cache that do not already exist in cache.
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_wp_batch_split_terms()
wp-includes/taxonomy.php
|
Splits a batch of shared taxonomy terms.
|
wpdb::get_table_charset()
wp-includes/class-wpdb.php
|
Retrieves the character set for the given table.
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maybe_convert_table_to_utf8mb4()
wp-admin/includes/upgrade.php
|
If a table only contains utf8 or utf8mb4 columns, convert it to utf8mb4.
|
attachment_url_to_postid()
wp-includes/media.php
|
Tries to convert an attachment URL into a post ID.
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check_column()
wp-admin/install-helper.php
|
Checks that database table column matches the criteria.
|
export_date_options()
wp-admin/export.php
|
Create the date options fields for exporting a given post type.
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export_wp()
wp-admin/includes/export.php
|
Generates the WXR export file for download.
|
wxr_authors_list()
wp-admin/includes/export.php
|
Outputs list of authors with posts.
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get_editable_authors()
wp-admin/includes/deprecated.php
|
Gets author users who can edit posts.
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get_others_unpublished_posts()
wp-admin/includes/deprecated.php
|
Retrieves editable posts from other users.
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WP_List_Table::months_dropdown()
wp-admin/includes/class-wp-list-table.php
|
Displays a dropdown for filtering items in the list table by month.
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pre_schema_upgrade()
wp-admin/includes/upgrade.php
|
Runs before the schema is upgraded.
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upgrade_network()
wp-admin/includes/upgrade.php
|
Executes network-level upgrade routines.
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get_alloptions_110()
wp-admin/includes/upgrade.php
|
Retrieve all options as it was for 1.2.
|
dbDelta()
wp-admin/includes/upgrade.php
|
Modifies the database based on specified SQL statements.
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get_users_drafts()
wp-admin/includes/user.php
|
Retrieve the user’s drafts.
|
parent_dropdown()
wp-admin/includes/template.php
|
Prints out option HTML elements for the page parents drop-down.
|
media_upload_library_form()
wp-admin/includes/media.php
|
Outputs the legacy media upload form for the media library.
|
has_meta()
wp-admin/includes/post.php
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Returns meta data for the given post ID.
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bulk_edit_posts()
wp-admin/includes/post.php
|
Processes the post data for the bulk editing of posts.
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WP_Importer::get_imported_comments()
wp-admin/includes/class-wp-importer.php
|
Set array with imported comments from WordPress database
|
WP_Importer::get_imported_posts()
wp-admin/includes/class-wp-importer.php
|
Returns array with imported permalinks from WordPress database
|
WP_Importer::count_imported_posts()
wp-admin/includes/class-wp-importer.php
|
Return count of imported permalinks from WordPress database
|
get_pending_comments_num()
wp-admin/includes/comment.php
|
Gets the number of pending comments on a post or posts.
|
cache_users()
wp-includes/pluggable.php
|
Retrieves info for user lists to prevent multiple queries by get_userdata() .
|
wp_get_archives()
wp-includes/general-template.php
|
Displays archive links based on type and format.
|
get_calendar()
wp-includes/general-template.php
|
Displays calendar with days that have posts as links.
|
get_users_of_blog()
wp-includes/deprecated.php
|
Get users for the site.
|
WP_Query::get_posts()
wp-includes/class-wp-query.php
|
Retrieves an array of posts based on query variables.
|
wp_scheduled_delete()
wp-includes/functions.php
|
Permanently deletes comments or posts of any type that have held a status of ‘trash’ for the number of days defined in EMPTY_TRASH_DAYS.
|
is_blog_installed()
wp-includes/functions.php
|
Determines whether WordPress is already installed.
|
_pad_term_counts()
wp-includes/taxonomy.php
|
Adds count of children to parent count.
|
clean_term_cache()
wp-includes/taxonomy.php
|
Removes all of the term IDs from the cache.
|
wp_delete_term()
wp-includes/taxonomy.php
|
Removes a term from the database.
|
wp_load_alloptions()
wp-includes/option.php
|
Loads and caches all autoloaded options, if available or all options.
|
wp_load_core_site_options()
wp-includes/option.php
|
Loads and caches certain often requested site options if is_multisite() and a persistent cache is not being used.
|
WP_User_Query::query()
wp-includes/class-wp-user-query.php
|
Executes the query, with the current variables.
|
count_many_users_posts()
wp-includes/user.php
|
Gets the number of posts written by a list of users.
|
wp_enqueue_media()
wp-includes/media.php
|
Enqueues all scripts, styles, settings, and templates necessary to use all media JS APIs.
|
_prime_post_caches()
wp-includes/post.php
|
Adds any posts from the given IDs to the cache that do not already exist in cache.
|
get_page_by_path()
wp-includes/post.php
|
Retrieves a page given its path.
|
get_pages()
wp-includes/post.php
|
Retrieves an array of pages (or hierarchical post type items).
|
wp_delete_post()
wp-includes/post.php
|
Trashes or deletes a post or page.
|
wp_trash_post_comments()
wp-includes/post.php
|
Moves comments for a post to the Trash.
|
wp_count_posts()
wp-includes/post.php
|
Counts number of posts of a post type and if user has permissions to view.
|
wp_count_attachments()
wp-includes/post.php
|
Counts number of attachments for the mime type(s).
|
WP_Rewrite::page_uri_index()
wp-includes/class-wp-rewrite.php
|
Retrieves all pages and attachments for pages URIs.
|
redirect_canonical()
wp-includes/canonical.php
|
Redirects incoming links to the proper URL based on the site url.
|
wp_get_post_autosave()
wp-includes/revision.php
|
Retrieves the autosaved data of the specified post.
|
install_blog()
wp-includes/ms-deprecated.php
|
Install an empty blog.
|
get_admin_users_for_domain()
wp-includes/ms-deprecated.php
|
Get the admin for a domain/path combination.
|
get_bookmarks()
wp-includes/bookmark.php
|
Retrieves the list of bookmarks.
|
get_blog_list()
wp-includes/ms-deprecated.php
|
Deprecated functionality to retrieve a list of all sites.
|
wp_list_authors()
wp-includes/author-template.php
|
Lists all the authors of the site, with several options available.
|
get_last_updated()
wp-includes/ms-blogs.php
|
Gets a list of most recently updated blogs.
|
wp_xmlrpc_server::mt_getTrackbackPings()
wp-includes/class-wp-xmlrpc-server.php
|
Retrieves trackbacks sent to a given post.
|
wp_xmlrpc_server::pingback_ping()
wp-includes/class-wp-xmlrpc-server.php
|
Retrieves a pingback and registers it.
|
wp_xmlrpc_server::pingback_extensions_getPingbacks()
wp-includes/class-wp-xmlrpc-server.php
|
Retrieves an array of URLs that pingbacked the given URL.
|
wp_xmlrpc_server::attach_uploads()
wp-includes/class-wp-xmlrpc-server.php
|
Attaches an upload to a post.
|
wp_xmlrpc_server::wp_getPageList()
wp-includes/class-wp-xmlrpc-server.php
|
Retrieves page list.
|
update_meta_cache()
wp-includes/meta.php
|
Updates the metadata cache for the specified objects.
|
Example about how can you retrieve data from a table using get_results function:
Please, note that I have used %d assuming that $some_parameter is a int value.
Don’t forget to handle the error case. Here is how to catch errors from
get_results
:The example below is using heredoc to write the query and then getting the result through
$wpdb->get_result()
. The second parameterARRAY_A
used on the function will tell to the function that we need the result to be an Array.