Title: Hooks | Page 45 of 49 | Developer.WordPress.org --- # Hooks * hook[post_type_link](https://developer.wordpress.org/reference/hooks/post_type_link/) * Filters the permalink for a post of a custom post type. * Used by [1 function](https://developer.wordpress.org/reference/hooks/post_type_link/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/post_type_link/#uses) | Source: [wp-includes/link-template.php:375](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/link-template.php#L375-L375) * hook[post_unstuck](https://developer.wordpress.org/reference/hooks/post_unstuck/) * Fires once a post has been removed from the sticky list. * Used by [1 function](https://developer.wordpress.org/reference/hooks/post_unstuck/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/post_unstuck/#uses) | Source: [wp-includes/post.php:3356](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/post.php#L3356-L3356) * hook[post_updated](https://developer.wordpress.org/reference/hooks/post_updated/) * Fires once an existing post has been updated. * Used by [1 function](https://developer.wordpress.org/reference/hooks/post_updated/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/post_updated/#uses) | Source: [wp-includes/post.php:5163](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/post.php#L5163-L5163) * hook[post_updated_messages](https://developer.wordpress.org/reference/hooks/post_updated_messages/) * Filters the post updated messages. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/post_updated_messages/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/post_updated_messages/#uses) | Source: [wp-admin/edit-form-advanced.php:212](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/edit-form-advanced.php#L212-L212) * hook[post_{$field}](https://developer.wordpress.org/reference/hooks/post_field/) * Filters the value of a specific post field for display. * Used by [1 function](https://developer.wordpress.org/reference/hooks/post_field/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/post_field/#uses) | Source: [wp-includes/post.php:3262](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/post.php#L3262-L3262) * hook[pre-html-upload-ui](https://developer.wordpress.org/reference/hooks/pre-html-upload-ui/) * Fires before the upload button in the media upload interface. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre-html-upload-ui/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre-html-upload-ui/#uses) | Source: [wp-admin/includes/media.php:2278](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/media.php#L2278-L2278) * hook[pre-plupload-upload-ui](https://developer.wordpress.org/reference/hooks/pre-plupload-upload-ui/) * Fires before the upload interface loads. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/pre-plupload-upload-ui/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre-plupload-upload-ui/#uses) | Source: [wp-admin/includes/media.php:2250](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/media.php#L2250-L2250) * hook[pre-upload-ui](https://developer.wordpress.org/reference/hooks/pre-upload-ui/) * Fires just before the legacy (pre-3.5.0) upload interface is loaded. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/pre-upload-ui/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre-upload-ui/#uses) | Source: [wp-admin/includes/media.php:2150](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/media.php#L2150-L2150) * hook[prepend_attachment](https://developer.wordpress.org/reference/hooks/prepend_attachment/) * Filters the attachment markup to be prepended to the post content. * Used by [1 function](https://developer.wordpress.org/reference/hooks/prepend_attachment/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/prepend_attachment/#uses) | Source: [wp-includes/post-template.php:1759](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/post-template.php#L1759-L1759) * hook[preprocess_comment](https://developer.wordpress.org/reference/hooks/preprocess_comment/) * Filters a comment’s data before it is sanitized and inserted into the database. * Used by [1 function](https://developer.wordpress.org/reference/hooks/preprocess_comment/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/preprocess_comment/#uses) | Source: [wp-includes/comment.php:2344](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/comment.php#L2344-L2344) * hook[preprocess_signup_form](https://developer.wordpress.org/reference/hooks/preprocess_signup_form/) * Fires when the site sign-up form is sent. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/preprocess_signup_form/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/preprocess_signup_form/#uses) | Source: [wp-signup.php:1009](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-signup.php#L1009-L1009) * hook[preview_post_link](https://developer.wordpress.org/reference/hooks/preview_post_link/) * Filters the URL used for a post preview. * Used by [1 function](https://developer.wordpress.org/reference/hooks/preview_post_link/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/preview_post_link/#uses) | Source: [wp-includes/link-template.php:1435](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/link-template.php#L1435-L1435) * hook[previous_comments_link_attributes](https://developer.wordpress.org/reference/hooks/previous_comments_link_attributes/) * Filters the anchor tag attributes for the previous comments page link. * Used by [1 function](https://developer.wordpress.org/reference/hooks/previous_comments_link_attributes/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/previous_comments_link_attributes/#uses) | Source: [wp-includes/link-template.php:3227](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/link-template.php#L3227-L3227) * hook[previous_posts_link_attributes](https://developer.wordpress.org/reference/hooks/previous_posts_link_attributes/) * Filters the anchor tag attributes for the previous posts page link. * Used by [1 function](https://developer.wordpress.org/reference/hooks/previous_posts_link_attributes/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/previous_posts_link_attributes/#uses) | Source: [wp-includes/link-template.php:2686](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/link-template.php#L2686-L2686) * hook[pre_add_site_option_{$option}](https://developer.wordpress.org/reference/hooks/pre_add_site_option_option/) * Filters the value of a specific network option before it is added. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_add_site_option_option/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_add_site_option_option/#uses) | Source: [wp-includes/option.php:2184](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/option.php#L2184-L2184) * hook[pre_attachment_url_to_postid](https://developer.wordpress.org/reference/hooks/pre_attachment_url_to_postid/) * Filters the attachment ID to allow short-circuit the function. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_attachment_url_to_postid/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_attachment_url_to_postid/#uses) | Source: [wp-includes/media.php:5526](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L5526-L5526) * hook[pre_auto_update](https://developer.wordpress.org/reference/hooks/pre_auto_update/) * Fires immediately prior to an auto-update. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_auto_update/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_auto_update/#uses) | Source: [wp-admin/includes/class-wp-automatic-updater.php:401](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/class-wp-automatic-updater.php#L401-L401) * hook[pre_cache_alloptions](https://developer.wordpress.org/reference/hooks/pre_cache_alloptions/) * Filters all options before caching them. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_cache_alloptions/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_cache_alloptions/#uses) | Source: [wp-includes/option.php:648](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/option.php#L648-L648) * hook[pre_category_nicename](https://developer.wordpress.org/reference/hooks/pre_category_nicename/) * Filters the category nicename before it is sanitized. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_category_nicename/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_category_nicename/#uses) | Source: [wp-includes/taxonomy.php:1858](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/taxonomy.php#L1858-L1858) * hook[pre_clear_scheduled_hook](https://developer.wordpress.org/reference/hooks/pre_clear_scheduled_hook/) * Filter to override clearing a scheduled hook. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_clear_scheduled_hook/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_clear_scheduled_hook/#uses) | Source: [wp-includes/cron.php:583](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/cron.php#L583-L583) * hook[pre_comment_approved](https://developer.wordpress.org/reference/hooks/pre_comment_approved/) * Filters a comment’s approval status before it is set. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_comment_approved/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_comment_approved/#uses) | Source: [wp-includes/comment.php:1346](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/comment.php#L1346-L1346) * hook[pre_comment_author_email](https://developer.wordpress.org/reference/hooks/pre_comment_author_email/) * Filters the comment author’s email cookie before it is set. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/pre_comment_author_email/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_comment_author_email/#uses) | Source: [wp-includes/comment.php:649](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/comment.php#L649-L649) * hook[pre_comment_author_name](https://developer.wordpress.org/reference/hooks/pre_comment_author_name/) * Filters the comment author’s name cookie before it is set. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/pre_comment_author_name/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_comment_author_name/#uses) | Source: [wp-includes/comment.php:631](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/comment.php#L631-L631) * hook[pre_comment_author_url](https://developer.wordpress.org/reference/hooks/pre_comment_author_url/) * Filters the comment author’s URL cookie before it is set. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/pre_comment_author_url/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_comment_author_url/#uses) | Source: [wp-includes/comment.php:667](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/comment.php#L667-L667) * hook[pre_comment_content](https://developer.wordpress.org/reference/hooks/pre_comment_content/) * Filters the comment content before it is set. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_comment_content/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_comment_content/#uses) | Source: [wp-includes/comment.php:2225](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/comment.php#L2225-L2225) * hook[pre_comment_on_post](https://developer.wordpress.org/reference/hooks/pre_comment_on_post/) * Fires before a comment is posted. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_comment_on_post/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_comment_on_post/#uses) | Source: [wp-includes/comment.php:3733](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/comment.php#L3733-L3733) * hook[pre_comment_user_agent](https://developer.wordpress.org/reference/hooks/pre_comment_user_agent/) * Filters the comment author’s browser user agent before it is set. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_comment_user_agent/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_comment_user_agent/#uses) | Source: [wp-includes/comment.php:2215](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/comment.php#L2215-L2215) * hook[pre_comment_user_ip](https://developer.wordpress.org/reference/hooks/pre_comment_user_ip/) * Filters the comment author’s IP address before it is set. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_comment_user_ip/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_comment_user_ip/#uses) | Source: [wp-includes/comment.php:2233](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/comment.php#L2233-L2233) * hook[pre_count_many_users_posts](https://developer.wordpress.org/reference/hooks/pre_count_many_users_posts/) * Filters whether to short-circuit performing the post counts. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_count_many_users_posts/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_count_many_users_posts/#uses) | Source: [wp-includes/user.php:681](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L681-L681) * hook[pre_count_users](https://developer.wordpress.org/reference/hooks/pre_count_users/) * Filters the user count before queries are run. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_count_users/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_count_users/#uses) | Source: [wp-includes/user.php:1357](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1357-L1357) [Previous Page](https://developer.wordpress.org/reference/hooks/page/44/?output_format=md) [1](https://developer.wordpress.org/reference/hooks/?output_format=md) … 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