Title: Hooks | Page 31 of 49 | Developer.WordPress.org --- # Hooks * hook[install_plugins_tabs](https://developer.wordpress.org/reference/hooks/install_plugins_tabs/) * Filters the tabs shown on the Add Plugins screen. * Used by [1 function](https://developer.wordpress.org/reference/hooks/install_plugins_tabs/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_plugins_tabs/#uses) | Source: [wp-admin/includes/class-wp-plugin-install-list-table.php:134](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/class-wp-plugin-install-list-table.php#L134-L134) * hook[install_plugins_{$tab}](https://developer.wordpress.org/reference/hooks/install_plugins_tab/) * Fires after the plugins list table in each tab of the Install Plugins screen. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/install_plugins_tab/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_plugins_tab/#uses) | Source: [wp-admin/plugin-install.php:200](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/plugin-install.php#L200-L200) * hook[install_plugin_complete_actions](https://developer.wordpress.org/reference/hooks/install_plugin_complete_actions/) * Filters the list of action links available following a single plugin installation. * Used by [1 function](https://developer.wordpress.org/reference/hooks/install_plugin_complete_actions/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_plugin_complete_actions/#uses) | Source: [wp-admin/includes/class-plugin-installer-skin.php:178](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/class-plugin-installer-skin.php#L178-L178) * hook[install_plugin_overwrite_actions](https://developer.wordpress.org/reference/hooks/install_plugin_overwrite_actions/) * Filters the list of action links available following a single plugin installation failure when overwriting is allowed. * Used by [1 function](https://developer.wordpress.org/reference/hooks/install_plugin_overwrite_actions/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_plugin_overwrite_actions/#uses) | Source: [wp-admin/includes/class-plugin-installer-skin.php:343](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/class-plugin-installer-skin.php#L343-L343) * hook[install_plugin_overwrite_comparison](https://developer.wordpress.org/reference/hooks/install_plugin_overwrite_comparison/) * Filters the compare table output for overwriting a plugin package on upload. * Used by [1 function](https://developer.wordpress.org/reference/hooks/install_plugin_overwrite_comparison/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_plugin_overwrite_comparison/#uses) | Source: [wp-admin/includes/class-plugin-installer-skin.php:260](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/class-plugin-installer-skin.php#L260-L260) * hook[install_themes_nonmenu_tabs](https://developer.wordpress.org/reference/hooks/install_themes_nonmenu_tabs/) * Filters tabs not associated with a menu item on the Install Themes screen. * Used by [1 function](https://developer.wordpress.org/reference/hooks/install_themes_nonmenu_tabs/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_themes_nonmenu_tabs/#uses) | Source: [wp-admin/includes/class-wp-theme-install-list-table.php:82](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/class-wp-theme-install-list-table.php#L82-L82) * hook[install_themes_pre_{$tab}](https://developer.wordpress.org/reference/hooks/install_themes_pre_tab/) * Fires before each of the tabs are rendered on the Install Themes page. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/install_themes_pre_tab/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_themes_pre_tab/#uses) | Source: [wp-admin/theme-install.php:103](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/theme-install.php#L103-L103) * hook[install_themes_table_api_args_{$tab}](https://developer.wordpress.org/reference/hooks/install_themes_table_api_args_tab/) * Filters API request arguments for each Install Themes screen tab. * Used by [1 function](https://developer.wordpress.org/reference/hooks/install_themes_table_api_args_tab/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_themes_table_api_args_tab/#uses) | Source: [wp-admin/includes/class-wp-theme-install-list-table.php:150](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/class-wp-theme-install-list-table.php#L150-L150) * hook[install_themes_table_header](https://developer.wordpress.org/reference/hooks/install_themes_table_header/) * Fires in the Install Themes list table header. * Used by [1 function](https://developer.wordpress.org/reference/hooks/install_themes_table_header/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_themes_table_header/#uses) | Source: [wp-admin/includes/class-wp-theme-install-list-table.php:217](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/class-wp-theme-install-list-table.php#L217-L217) * hook[install_themes_tabs](https://developer.wordpress.org/reference/hooks/install_themes_tabs/) * Filters the tabs shown on the Add Themes screen. * Used by [1 function](https://developer.wordpress.org/reference/hooks/install_themes_tabs/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_themes_tabs/#uses) | Source: [wp-admin/theme-install.php:177](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/theme-install.php#L177-L177) * hook[install_themes_{$tab}](https://developer.wordpress.org/reference/hooks/install_themes_tab/) * Fires at the top of each of the tabs on the Install Themes page. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/install_themes_tab/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_themes_tab/#uses) | Source: [wp-admin/theme-install.php:310](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/theme-install.php#L310-L310) * hook[install_theme_complete_actions](https://developer.wordpress.org/reference/hooks/install_theme_complete_actions/) * Filters the list of action links available following a single theme installation. * Used by [1 function](https://developer.wordpress.org/reference/hooks/install_theme_complete_actions/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_theme_complete_actions/#uses) | Source: [wp-admin/includes/class-theme-installer-skin.php:200](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/class-theme-installer-skin.php#L200-L200) * hook[install_theme_overwrite_actions](https://developer.wordpress.org/reference/hooks/install_theme_overwrite_actions/) * Filters the list of action links available following a single theme installation failure when overwriting is allowed. * Used by [1 function](https://developer.wordpress.org/reference/hooks/install_theme_overwrite_actions/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_theme_overwrite_actions/#uses) | Source: [wp-admin/includes/class-theme-installer-skin.php:388](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/class-theme-installer-skin.php#L388-L388) * hook[install_theme_overwrite_comparison](https://developer.wordpress.org/reference/hooks/install_theme_overwrite_comparison/) * Filters the compare table output for overwriting a theme package on upload. * Used by [1 function](https://developer.wordpress.org/reference/hooks/install_theme_overwrite_comparison/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/install_theme_overwrite_comparison/#uses) | Source: [wp-admin/includes/class-theme-installer-skin.php:305](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/class-theme-installer-skin.php#L305-L305) * hook[interactivity_process_directives](https://developer.wordpress.org/reference/hooks/interactivity_process_directives/) * Filters whether Interactivity API should process directives. * Used by [1 function](https://developer.wordpress.org/reference/hooks/interactivity_process_directives/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/interactivity_process_directives/#uses) | Source: [wp-includes/class-wp-block.php:517](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/class-wp-block.php#L517-L517) * hook[intermediate_image_sizes](https://developer.wordpress.org/reference/hooks/intermediate_image_sizes/) * Filters the list of intermediate image sizes. * Used by [1 function](https://developer.wordpress.org/reference/hooks/intermediate_image_sizes/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/intermediate_image_sizes/#uses) | Source: [wp-includes/media.php:899](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L899-L899) * hook[intermediate_image_sizes_advanced](https://developer.wordpress.org/reference/hooks/intermediate_image_sizes_advanced/) * Filters the image sizes automatically generated when uploading an image. * Used by [1 function](https://developer.wordpress.org/reference/hooks/intermediate_image_sizes_advanced/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/intermediate_image_sizes_advanced/#uses) | Source: [wp-admin/includes/image.php:410](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/image.php#L410-L410) * hook[invited_user_email](https://developer.wordpress.org/reference/hooks/invited_user_email/) * Filters the contents of the email sent when an existing user is invited to join the site. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/invited_user_email/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/invited_user_email/#uses) | Source: [wp-admin/user-new.php:170](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/user-new.php#L170-L170) * hook[invite_user](https://developer.wordpress.org/reference/hooks/invite_user/) * Fires immediately after an existing user is invited to join the site, but before the notification is sent. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/invite_user/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/invite_user/#uses) | Source: [wp-admin/user-new.php:116](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/user-new.php#L116-L116) * hook[in_admin_footer](https://developer.wordpress.org/reference/hooks/in_admin_footer/) * Fires after the opening tag for the admin footer. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/in_admin_footer/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/in_admin_footer/#uses) | Source: [wp-admin/admin-footer.php:31](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/admin-footer.php#L31-L31) * hook[in_admin_header](https://developer.wordpress.org/reference/hooks/in_admin_header/) * Fires at the beginning of the content section in an admin page. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/in_admin_header/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/in_admin_header/#uses) | Source: [wp-admin/admin-header.php:277](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/admin-header.php#L277-L277) * hook[in_plugin_update_message-{$file}](https://developer.wordpress.org/reference/hooks/in_plugin_update_message-file/) * Fires at the end of the update message container in each row of the plugins list table. * Used by [1 function](https://developer.wordpress.org/reference/hooks/in_plugin_update_message-file/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/in_plugin_update_message-file/#uses) | Source: [wp-admin/includes/update.php:616](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/update.php#L616-L616) * hook[in_theme_update_message-{$theme_key}](https://developer.wordpress.org/reference/hooks/in_theme_update_message-theme_key/) * Fires at the end of the update message container in each row of the themes list table. * Used by [1 function](https://developer.wordpress.org/reference/hooks/in_theme_update_message-theme_key/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/in_theme_update_message-theme_key/#uses) | Source: [wp-admin/includes/update.php:839](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/update.php#L839-L839) * hook[in_widget_form](https://developer.wordpress.org/reference/hooks/in_widget_form/) * Fires at the end of the widget control form. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/in_widget_form/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/in_widget_form/#uses) | Source: [wp-includes/class-wp-widget.php:553](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/class-wp-widget.php#L553-L553) * hook[is_active_sidebar](https://developer.wordpress.org/reference/hooks/is_active_sidebar/) * Filters whether a dynamic sidebar is considered “active”. * Used by [1 function](https://developer.wordpress.org/reference/hooks/is_active_sidebar/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/is_active_sidebar/#uses) | Source: [wp-includes/widgets.php:997](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/widgets.php#L997-L997) * hook[is_email](https://developer.wordpress.org/reference/hooks/is_email/) * Filters whether an email address is valid. * Used by [1 function](https://developer.wordpress.org/reference/hooks/is_email/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/is_email/#uses) | Source: [wp-includes/formatting.php:3571](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/formatting.php#L3571-L3571) * hook[is_email_address_unsafe](https://developer.wordpress.org/reference/hooks/is_email_address_unsafe/) * Filters whether an email address is unsafe. * Used by [1 function](https://developer.wordpress.org/reference/hooks/is_email_address_unsafe/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/is_email_address_unsafe/#uses) | Source: [wp-includes/ms-functions.php:437](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/ms-functions.php#L437-L437) * hook[is_header_video_active](https://developer.wordpress.org/reference/hooks/is_header_video_active/) * Filters whether the custom header video is eligible to show on the current page. * Used by [1 function](https://developer.wordpress.org/reference/hooks/is_header_video_active/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/is_header_video_active/#uses) | Source: [wp-includes/theme.php:1796](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1796-L1796) * hook[is_multi_author](https://developer.wordpress.org/reference/hooks/is_multi_author/) * Filters whether the site has more than one author with published posts. * Used by [1 function](https://developer.wordpress.org/reference/hooks/is_multi_author/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/is_multi_author/#uses) | Source: [wp-includes/author-template.php:624](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/author-template.php#L624-L624) * hook[is_post_embeddable](https://developer.wordpress.org/reference/hooks/is_post_embeddable/) * Filter whether a post is embeddable. * Used by [1 function](https://developer.wordpress.org/reference/hooks/is_post_embeddable/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/is_post_embeddable/#uses) | Source: [wp-includes/post.php:2552](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/post.php#L2552-L2552) [Previous Page](https://developer.wordpress.org/reference/hooks/page/30/?output_format=md) [1](https://developer.wordpress.org/reference/hooks/?output_format=md) … [29](https://developer.wordpress.org/reference/hooks/page/29/?output_format=md) [30](https://developer.wordpress.org/reference/hooks/page/30/?output_format=md) 31 [32](https://developer.wordpress.org/reference/hooks/page/32/?output_format=md) [33](https://developer.wordpress.org/reference/hooks/page/33/?output_format=md) … [49](https://developer.wordpress.org/reference/hooks/page/49/?output_format=md) [Next Page](https://developer.wordpress.org/reference/hooks/page/32/?output_format=md)