Title: Hooks | Page 8 of 49 | Developer.WordPress.org --- # Hooks * hook[blog_privacy_selector](https://developer.wordpress.org/reference/hooks/blog_privacy_selector/) * Enables the legacy ‘Site visibility’ privacy options. * Used by [1 function](https://developer.wordpress.org/reference/hooks/blog_privacy_selector/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/blog_privacy_selector/#uses) | Source: [wp-admin/options-reading.php:235](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/options-reading.php#L235-L235) * hook[blog_redirect_404](https://developer.wordpress.org/reference/hooks/blog_redirect_404/) * Filters the redirect URL for 404s on the main site. * Used by [1 function](https://developer.wordpress.org/reference/hooks/blog_redirect_404/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/blog_redirect_404/#uses) | Source: [wp-includes/ms-functions.php:2200](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/ms-functions.php#L2200-L2200) * hook[body_class](https://developer.wordpress.org/reference/hooks/body_class/) * Filters the list of CSS body class names for the current post or page. * Used by [1 function](https://developer.wordpress.org/reference/hooks/body_class/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/body_class/#uses) | Source: [wp-includes/post-template.php:869](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/post-template.php#L869-L869) * hook[browse-happy-notice](https://developer.wordpress.org/reference/hooks/browse-happy-notice/) * Filters the notice output for the ‘Browse Happy’ nag meta box. * Used by [1 function](https://developer.wordpress.org/reference/hooks/browse-happy-notice/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/browse-happy-notice/#uses) | Source: [wp-admin/includes/dashboard.php:1791](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/dashboard.php#L1791-L1791) * hook[bulk_actions-{$this->screen->id}](https://developer.wordpress.org/reference/hooks/bulk_actions-this-screen-id/) * Filters the items in the bulk actions menu of the list table. * Used by [1 function](https://developer.wordpress.org/reference/hooks/bulk_actions-this-screen-id/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/bulk_actions-this-screen-id/#uses) | Source: [wp-admin/includes/class-wp-list-table.php:586](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/class-wp-list-table.php#L586-L586) * hook[bulk_action_observer_ids](https://developer.wordpress.org/reference/hooks/bulk_action_observer_ids/) * Filters the array of field name attributes for bulk actions. * Used by [1 function](https://developer.wordpress.org/reference/hooks/bulk_action_observer_ids/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/bulk_action_observer_ids/#uses) | Source: [wp-includes/script-loader.php:788](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/script-loader.php#L788-L788) * hook[bulk_edit_custom_box](https://developer.wordpress.org/reference/hooks/bulk_edit_custom_box/) * Fires once for each column in Bulk Edit mode. * Used by [1 function](https://developer.wordpress.org/reference/hooks/bulk_edit_custom_box/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/bulk_edit_custom_box/#uses) | Source: [wp-admin/includes/class-wp-posts-list-table.php:2091](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/class-wp-posts-list-table.php#L2091-L2091) * hook[bulk_edit_posts](https://developer.wordpress.org/reference/hooks/bulk_edit_posts/) * Fires after processing the post data for bulk edit. * Used by [1 function](https://developer.wordpress.org/reference/hooks/bulk_edit_posts/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/bulk_edit_posts/#uses) | Source: [wp-admin/includes/post.php:726](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/post.php#L726-L726) * hook[bulk_post_updated_messages](https://developer.wordpress.org/reference/hooks/bulk_post_updated_messages/) * Filters the bulk action updated messages. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/bulk_post_updated_messages/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/bulk_post_updated_messages/#uses) | Source: [wp-admin/edit.php:408](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/edit.php#L408-L408) * hook[cancel_comment_reply_link](https://developer.wordpress.org/reference/hooks/cancel_comment_reply_link/) * Filters the cancel comment reply link HTML. * Used by [1 function](https://developer.wordpress.org/reference/hooks/cancel_comment_reply_link/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/cancel_comment_reply_link/#uses) | Source: [wp-includes/comment-template.php:2021](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/comment-template.php#L2021-L2021) * hook[can_add_user_to_blog](https://developer.wordpress.org/reference/hooks/can_add_user_to_blog/) * Filters whether a user should be added to a site. * Used by [1 function](https://developer.wordpress.org/reference/hooks/can_add_user_to_blog/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/can_add_user_to_blog/#uses) | Source: [wp-includes/ms-functions.php:182](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/ms-functions.php#L182-L182) * hook[can_edit_network](https://developer.wordpress.org/reference/hooks/can_edit_network/) * Filters whether this network can be edited from this page. * Used by [1 function](https://developer.wordpress.org/reference/hooks/can_edit_network/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/can_edit_network/#uses) | Source: [wp-admin/includes/ms.php:834](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/ms.php#L834-L834) * hook[category_css_class](https://developer.wordpress.org/reference/hooks/category_css_class/) * Filters the list of CSS classes to include with each category in the list. * Used by [1 function](https://developer.wordpress.org/reference/hooks/category_css_class/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/category_css_class/#uses) | Source: [wp-includes/class-walker-category.php:245](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-walker-category.php#L245-L245) * hook[category_description](https://developer.wordpress.org/reference/hooks/category_description/) * Filters the category description for display. * Used by [1 function](https://developer.wordpress.org/reference/hooks/category_description/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/category_description/#uses) | Source: [wp-includes/class-walker-category.php:125](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-walker-category.php#L125-L125) * hook[category_feed_link](https://developer.wordpress.org/reference/hooks/category_feed_link/) * Filters the category feed link. * Used by [1 function](https://developer.wordpress.org/reference/hooks/category_feed_link/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/category_feed_link/#uses) | Source: [wp-includes/link-template.php:983](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/link-template.php#L983-L983) * hook[category_link](https://developer.wordpress.org/reference/hooks/category_link/) * Filters the category link. * Used by [1 function](https://developer.wordpress.org/reference/hooks/category_link/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/category_link/#uses) | Source: [wp-includes/taxonomy.php:4758](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/taxonomy.php#L4758-L4758) * hook[category_list_link_attributes](https://developer.wordpress.org/reference/hooks/category_list_link_attributes/) * Filters the HTML attributes applied to a category list item’s anchor element. * Used by [1 function](https://developer.wordpress.org/reference/hooks/category_list_link_attributes/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/category_list_link_attributes/#uses) | Source: [wp-includes/class-walker-category.php:144](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-walker-category.php#L144-L144) * hook[change_locale](https://developer.wordpress.org/reference/hooks/change_locale/) * Fires when the locale is switched to or restored. * Used by [1 function](https://developer.wordpress.org/reference/hooks/change_locale/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/change_locale/#uses) | Source: [wp-includes/class-wp-locale-switcher.php:300](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-locale-switcher.php#L300-L300) * hook[check_admin_referer](https://developer.wordpress.org/reference/hooks/check_admin_referer/) * Fires once the admin request has been validated or not. * Used by [1 function](https://developer.wordpress.org/reference/hooks/check_admin_referer/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/check_admin_referer/#uses) | Source: [wp-includes/pluggable.php:1390](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/pluggable.php#L1390-L1390) * hook[check_ajax_referer](https://developer.wordpress.org/reference/hooks/check_ajax_referer/) * Fires once the Ajax request has been validated or not. * Used by [1 function](https://developer.wordpress.org/reference/hooks/check_ajax_referer/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/check_ajax_referer/#uses) | Source: [wp-includes/pluggable.php:1443](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/pluggable.php#L1443-L1443) * hook[check_comment_flood](https://developer.wordpress.org/reference/hooks/check_comment_flood/) * Fires immediately before a comment is marked approved. * Used by [1 function](https://developer.wordpress.org/reference/hooks/check_comment_flood/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/check_comment_flood/#uses) | Source: [wp-includes/comment.php:777](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/comment.php#L777-L783) * hook[check_is_user_spammed](https://developer.wordpress.org/reference/hooks/check_is_user_spammed/) * Filters whether the user has been marked as a spammer. * Used by [1 function](https://developer.wordpress.org/reference/hooks/check_is_user_spammed/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/check_is_user_spammed/#uses) | Source: [wp-includes/user.php:565](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/user.php#L565-L565) * hook[check_password](https://developer.wordpress.org/reference/hooks/check_password/) * Filters whether the plaintext password matches the hashed password. * Used by [1 function](https://developer.wordpress.org/reference/hooks/check_password/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/check_password/#uses) | Source: [wp-includes/pluggable.php:2882](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/pluggable.php#L2882-L2882) * hook[check_passwords](https://developer.wordpress.org/reference/hooks/check_passwords/) * Fires before the password and confirm password fields are checked for congruity. * Used by [1 function](https://developer.wordpress.org/reference/hooks/check_passwords/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/check_passwords/#uses) | Source: [wp-admin/includes/user.php:169](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/user.php#L169-L169) * hook[clean_attachment_cache](https://developer.wordpress.org/reference/hooks/clean_attachment_cache/) * Fires after the given attachment’s cache is cleaned. * Used by [1 function](https://developer.wordpress.org/reference/hooks/clean_attachment_cache/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/clean_attachment_cache/#uses) | Source: [wp-includes/post.php:7911](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/post.php#L7911-L7911) * hook[clean_comment_cache](https://developer.wordpress.org/reference/hooks/clean_comment_cache/) * Fires immediately after a comment has been removed from the object cache. * Used by [1 function](https://developer.wordpress.org/reference/hooks/clean_comment_cache/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/clean_comment_cache/#uses) | Source: [wp-includes/comment.php:3425](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/comment.php#L3425-L3425) * hook[clean_network_cache](https://developer.wordpress.org/reference/hooks/clean_network_cache/) * Fires immediately after a network has been removed from the object cache. * Used by [1 function](https://developer.wordpress.org/reference/hooks/clean_network_cache/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/clean_network_cache/#uses) | Source: [wp-includes/ms-network.php:96](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/ms-network.php#L96-L96) * hook[clean_object_term_cache](https://developer.wordpress.org/reference/hooks/clean_object_term_cache/) * Fires after the object term cache has been cleaned. * Used by [1 function](https://developer.wordpress.org/reference/hooks/clean_object_term_cache/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/clean_object_term_cache/#uses) | Source: [wp-includes/taxonomy.php:3658](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/taxonomy.php#L3658-L3658) * hook[clean_page_cache](https://developer.wordpress.org/reference/hooks/clean_page_cache/) * Fires immediately after the given page’s cache is cleaned. * Used by [1 function](https://developer.wordpress.org/reference/hooks/clean_page_cache/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/clean_page_cache/#uses) | Source: [wp-includes/post.php:7759](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/post.php#L7759-L7759) * hook[clean_post_cache](https://developer.wordpress.org/reference/hooks/clean_post_cache/) * Fires immediately after the given post’s cache is cleaned. * Used by [1 function](https://developer.wordpress.org/reference/hooks/clean_post_cache/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/clean_post_cache/#uses) | Source: [wp-includes/post.php:7747](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/post.php#L7747-L7747) [Previous Page](https://developer.wordpress.org/reference/hooks/page/7/?output_format=md) [1](https://developer.wordpress.org/reference/hooks/?output_format=md) … [6](https://developer.wordpress.org/reference/hooks/page/6/?output_format=md) [7](https://developer.wordpress.org/reference/hooks/page/7/?output_format=md) 8 [9](https://developer.wordpress.org/reference/hooks/page/9/?output_format=md) [10](https://developer.wordpress.org/reference/hooks/page/10/?output_format=md)… [49](https://developer.wordpress.org/reference/hooks/page/49/?output_format=md) [Next Page](https://developer.wordpress.org/reference/hooks/page/9/?output_format=md)