Functions - 9.5.x - drupal

Title Deprecated File name Summary Direct uses Strings
hook_file_download core/lib/Drupal/Core/File/file.api.php Control access to private file downloads and specify HTTP headers.
hook_file_mimetype_mapping_alter core/lib/Drupal/Core/File/file.api.php Alter MIME type mappings used to determine MIME type from a file extension.
hook_file_move core/modules/file/file.api.php Respond to a file that has been moved.
hook_file_url_alter core/lib/Drupal/Core/File/file.api.php Alter the URL to a file.
hook_file_validate core/modules/file/file.api.php Check that files meet a given criteria.
hook_filter_format_disable core/modules/filter/filter.api.php Perform actions when a text format has been disabled.
hook_filter_info_alter core/modules/filter/filter.api.php Perform alterations on filter definitions.
hook_filter_secure_image_alter core/modules/filter/filter.api.php Alters images with an invalid source.
hook_form_alter core/lib/Drupal/Core/Form/form.api.php Perform alterations before a form is rendered.
hook_form_BASE_FORM_ID_alter core/lib/Drupal/Core/Form/form.api.php Provide a form-specific alteration for shared ('base') forms.
hook_form_FORM_ID_alter core/lib/Drupal/Core/Form/form.api.php Provide a form-specific alteration instead of the global hook_form_alter().
hook_form_system_theme_settings_alter core/lib/Drupal/Core/Render/theme.api.php Allow themes to alter the theme-specific settings form.
hook_hal_relation_uri_alter core/modules/hal/hal.api.php Alter the HAL relation URI.
hook_hal_type_uri_alter core/modules/hal/hal.api.php Alter the HAL type URI.
hook_help core/modules/help/help.api.php Provide online user help.
hook_help_section_info_alter core/modules/help/help.api.php Perform alterations on help page section plugin definitions.
hook_help_topics_info_alter core/modules/help_topics/help_topics.api.php Perform alterations on help topic definitions.
hook_hook_info core/lib/Drupal/Core/Extension/module.api.php Defines one or more hooks that are exposed by a module.
hook_image_effect_info_alter core/modules/image/image.api.php Alter the information provided in \Drupal\image\Annotation\ImageEffect.
hook_image_style_flush core/modules/image/image.api.php Respond to image style flushing.
hook_install core/lib/Drupal/Core/Extension/module.api.php Perform setup tasks when the module is installed.
hook_install_tasks core/lib/Drupal/Core/Extension/module.api.php Return an array of tasks to be performed by an installation profile.
hook_install_tasks_alter core/lib/Drupal/Core/Extension/module.api.php Alter the full list of installation tasks.
hook_jsonapi_entity_field_filter_access core/modules/jsonapi/jsonapi.api.php Restricts filtering access to the given field.
hook_jsonapi_entity_filter_access core/modules/jsonapi/jsonapi.api.php Controls access when filtering by entity data via JSON:API.
hook_jsonapi_ENTITY_TYPE_filter_access core/modules/jsonapi/jsonapi.api.php Controls access to filtering by entity data via JSON:API.
hook_js_alter core/lib/Drupal/Core/Render/theme.api.php Alters JavaScript before it is presented on the page.
hook_js_settings_alter core/lib/Drupal/Core/Render/theme.api.php Perform necessary alterations to the JavaScript settings (drupalSettings).
hook_js_settings_build core/lib/Drupal/Core/Render/theme.api.php Modify the JavaScript settings (drupalSettings).
hook_language_fallback_candidates_alter core/modules/language/language.api.php Allow modules to alter the language fallback candidates.
hook_language_fallback_candidates_OPERATION_alter core/modules/language/language.api.php Allow modules to alter the fallback candidates for specific operations.
hook_language_negotiation_info_alter core/modules/language/language.api.php Perform alterations on language negotiation methods.
hook_language_switch_links_alter core/lib/Drupal/Core/Language/language.api.php Perform alterations on language switcher links.
hook_language_types_info core/modules/language/language.api.php Define language types.
hook_language_types_info_alter core/modules/language/language.api.php Perform alterations on language types.
hook_layout_alter core/core.api.php Allow modules to alter layout plugin definitions.
hook_library_info_alter core/lib/Drupal/Core/Render/theme.api.php Alter libraries provided by an extension.
hook_library_info_build core/lib/Drupal/Core/Render/theme.api.php Add dynamic library definitions.
hook_link_alter core/lib/Drupal/Core/Menu/menu.api.php Alter the parameters for links.
hook_locale_translation_projects_alter core/modules/locale/locale.api.php Alter the list of projects to be updated by locale's interface translation.
hook_local_tasks_alter core/lib/Drupal/Core/Menu/menu.api.php Alter local tasks plugins.
hook_mail core/core.api.php Prepares a message based on parameters.
hook_mail_alter core/core.api.php Alter an email message created with MailManagerInterface->mail().
hook_mail_backend_info_alter core/core.api.php Alter the list of mail backend plugin definitions.
hook_media_source_info_alter core/modules/media/media.api.php Alters the information provided in \Drupal\media\Annotation\MediaSource.
hook_menu_links_discovered_alter core/lib/Drupal/Core/Menu/menu.api.php Alters all the menu links discovered by the menu link plugin manager.
hook_menu_local_actions_alter core/lib/Drupal/Core/Menu/menu.api.php Alter local actions plugins.
hook_menu_local_tasks_alter core/lib/Drupal/Core/Menu/menu.api.php Alter local tasks displayed on the page before they are rendered.
hook_migrate_MIGRATION_ID_prepare_row core/modules/migrate/migrate.api.php Allows adding data to a row for a migration with the specified ID.
hook_migrate_prepare_row core/modules/migrate/migrate.api.php Allows adding data to a row before processing it.

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