core.php

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Version 1.168.2.64 (checked in on 2009/06/29 at 20:25:15 by jhodgdon)

These are the hooks that are invoked by the Drupal core.

Core hooks are typically called in all modules at once using module_invoke_all().

Functions

Name	Description
custom_url_rewrite_inbound	custom_url_rewrite_inbound is not a hook, it's a function you can add to settings.php to alter incoming requests so they map to a Drupal path. This function is called before modules are loaded and the menu system is initialized and it changes...
custom_url_rewrite_outbound	custom_url_rewrite_outbound is not a hook, it's a function you can add to settings.php to alter all links generated by Drupal. This function is called from url(). This function is called very frequently (100+ times per page) so performance...
hook_actions_delete	Execute code after an action is deleted.
hook_action_info	Declare information about one or more Drupal actions.
hook_action_info_alter	Alter the actions declared by another module.
hook_block	Declare a block or set of blocks.
hook_boot	Perform setup tasks. See also, hook_init.
hook_comment	Act on comments.
hook_cron	Perform periodic actions.
hook_db_rewrite_sql	Rewrite database queries, usually for access control.
hook_elements	Allows modules to declare their own Forms API element types and specify their default values.
hook_exit	Perform cleanup tasks.
hook_file_download	Control access to private file downloads and specify HTTP headers.
hook_filter	Define content filters.
hook_filter_tips	Provide tips for using filters.
hook_flush_caches	Add a list of cache tables to be cleared.
hook_footer	Insert closing HTML.
hook_forms	Map form_ids to builder functions.
hook_form_alter	Perform alterations before a form is rendered.
hook_form_FORM_ID_alter	Provide a form-specific alteration instead of the global hook_form_alter().
hook_help	Provide online user help.
hook_hook_info	Expose a list of triggers (events) that your module is allowing users to assign actions to.
hook_init	Perform setup tasks. See also, hook_boot.
hook_link	Define internal Drupal links.
hook_link_alter	Perform alterations before links on a node are rendered. One popular use of this hook is to modify/remove links from other modules. If you want to add a link to the links section of a node, use hook_link instead.
hook_locale	Allows modules to define their own text groups that can be translated.
hook_mail	Prepare a message based on parameters; called from drupal_mail().
hook_mail_alter	Alter any aspect of email sent by Drupal. You can use this hook to add a common site footer to all outgoing email, add extra header fields, and/or modify the email in any way. HTML-izing the outgoing email is one possibility. See also drupal_mail().
hook_menu	Define menu items and page callbacks.
hook_menu_alter	Alter the data being saved to the {menu_router} table after hook_menu is invoked.
hook_menu_link_alter	Alter the data being saved to the {menu_links} table by menu_link_save().
hook_nodeapi	Act on nodes defined by other modules.
hook_node_access_records	Set permissions for a node to be written to the database.
hook_node_grants	Inform the node access system what permissions the user has.
hook_node_operations	Add mass node operations.
hook_perm	Define user permissions.
hook_ping	Ping another server.
hook_profile_alter	Perform alterations profile items before they are rendered. You may omit/add/re-sort/re-categorize, etc.
hook_schema_alter	Perform alterations to existing database schemas.
hook_search	Define a custom search routine.
hook_search_preprocess	Preprocess text for the search index.
hook_system_info_alter	Alter the information parsed from module and theme .info files
hook_taxonomy	Act on taxonomy changes.
hook_term_path	Allows modules to provide an alternative path for the terms it manages.
hook_theme	Register a module (or theme's) theme implementations.
hook_theme_registry_alter	Alter the theme registry information returned from hook_theme().
hook_translated_menu_link_alter	Alter a menu link after it's translated, but before it's rendered.
hook_translation_link_alter	Perform alterations on translation links.
hook_update_index	Update Drupal's full-text index for this module.
hook_update_projects_alter	Alter the list of projects before fetching data and comparing versions.
hook_update_status_alter	Alter the information about available updates for projects.
hook_user	Act on user account actions.
hook_user_operations	Add mass user operations.
hook_watchdog	Log an event message
hook_xmlrpc	Register XML-RPC callbacks.