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  • Introduction
  • API A-Z
    • Assets (CSS, JavaScript, Media)
    • Authentication
      • CSRF-like request token handling
      • Multi-Factor Authentication
    • Autoloading
      • ComposerClassLoader
    • Backend APIs
      • Access control in the backend (users and groups)
        • Users and groups
        • Password reset functionality
        • Roles
        • Access Control Options
        • Other Options
        • More about file mounts
        • Backend users module
      • JavaScript in TYPO3 Backend
        • ES6 in the TYPO3 Backend
        • Client-side templating
        • Various JavaScript modules
          • Modals
          • Multi-step wizard
          • DocumentService (jQuery.ready substitute)
          • SessionStorage wrapper
        • Event API
        • Navigation via JavaScript
        • JavaScript form helpers
      • Ajax in the backend
      • Ajax in the backend, client-side
      • Backend layout
      • Backend routing
      • Backend user object
      • Broadcast channels
      • Button components
      • Clipboard
      • Context-sensitive menus
      • Using Custom Permission Options
      • Links to Edit Records
      • Backend login form API
    • Caching
      • Quick start for integrators
      • Configuration
      • Caching framework architecture
      • Cache frontends
      • Cache backends
      • Developer information
    • System categories
    • Console commands (CLI)
      • Tutorial
    • Content Elements & Plugins
      • Introduction
      • Create a custom content element type
      • Custom data processors
      • Create plugins
      • Configure custom backend preview for content element
      • Add content elements to the Content Element Wizard
      • Best practices
    • Content Security Policy
    • Context API and Aspects
    • Country API
    • Crop Variants for Images
      • General Configuration
      • Crop variants configuration per content element
    • Data Formats
      • T3DataStructure
        • Elements
        • Sheet References
        • Parsing a Data Structure
    • Database (Doctrine DBAL)
      • Introduction
      • Configuration
      • Database structure
      • Upgrade table and field definitions
      • Basic create, read, update, and delete operations (CRUD)
      • Class overview
      • ConnectionPool
      • Query builder
      • Connection
      • Expression builder
      • Restriction builder
      • Result
      • Middleware
      • Various tips and tricks
    • Debugging
    • Dependency injection
    • Deprecation
    • Directory structure
      • Legacy installations: Directory structure
    • Enumerations & bitsets
      • How to use enumerations
      • How to use bitsets
    • Environment
    • Error and exception handling
      • Configuration
      • Error Handler
      • Production Exception Handler
      • Debug exception handler
      • Examples
      • How to extend the error and exception handling
    • Events and hooks
      • Extending the TYPO3 Core
      • Event dispatcher (PSR-14 events)
      • Event list
        • Backend
          • AfterBackendPageRenderEvent
          • AfterFormEnginePageInitializedEvent
          • AfterHistoryRollbackFinishedEvent
          • AfterPageColumnsSelectedForLocalizationEvent
          • AfterPagePreviewUriGeneratedEvent
          • AfterPageTreeItemsPreparedEvent
          • AfterRecordSummaryForLocalizationEvent
          • BeforeFormEnginePageInitializedEvent
          • BeforeHistoryRollbackStartEvent
          • BeforeModuleCreationEvent
          • BeforePagePreviewUriGeneratedEvent
          • BeforeSearchInDatabaseRecordProviderEvent
          • CustomFileControlsEvent
          • IsContentUsedOnPageLayoutEvent
          • IsFileSelectableEvent
          • ModifyAllowedItemsEvent
          • ModifyClearCacheActionsEvent
          • ModifyDatabaseQueryForContentEvent
          • ModifyDatabaseQueryForRecordListingEvent
          • ModifyEditFormUserAccessEvent
          • ModifyFileReferenceControlsEvent
          • ModifyFileReferenceEnabledControlsEvent
          • ModifyGenericBackendMessagesEvent
          • ModifyImageManipulationPreviewUrlEvent
          • ModifyInlineElementControlsEvent
          • ModifyInlineElementEnabledControlsEvent
          • ModifyLinkExplanationEvent
          • ModifyLinkHandlersEvent
          • ModifyNewContentElementWizardItemsEvent
          • ModifyPageLayoutContentEvent
          • ModifyPageLayoutOnLoginProviderSelectionEvent
          • ModifyQueryForLiveSearchEvent
          • ModifyRecordListHeaderColumnsEvent
          • ModifyRecordListRecordActionsEvent
          • ModifyRecordListTableActionsEvent
          • ModifyResultItemInLiveSearchEvent
          • PageContentPreviewRenderingEvent
          • RenderAdditionalContentToRecordListEvent
          • SwitchUserEvent
          • SystemInformationToolbarCollectorEvent
        • Core
          • Authentication
            • AfterGroupsResolvedEvent
            • AfterUserLoggedInEvent
            • AfterUserLoggedOutEvent
            • BeforeRequestTokenProcessedEvent
            • BeforeUserLogoutEvent
            • LoginAttemptFailedEvent
          • Cache
            • CacheFlushEvent
            • CacheWarmupEvent
          • Configuration
            • AfterFlexFormDataStructureIdentifierInitializedEvent
            • AfterFlexFormDataStructureParsedEvent
            • AfterTcaCompilationEvent
            • BeforeFlexFormDataStructureIdentifierInitializedEvent
            • BeforeFlexFormDataStructureParsedEvent
            • ModifyLoadedPageTsConfigEvent
            • SiteConfigurationBeforeWriteEvent
            • SiteConfigurationLoadedEvent
          • Core
            • BootCompletedEvent
          • DataHandling
            • AppendLinkHandlerElementsEvent
            • IsTableExcludedFromReferenceIndexEvent
          • Database
            • AlterTableDefinitionStatementsEvent
          • Domain
            • AfterRecordLanguageOverlayEvent
            • BeforePageLanguageOverlayEvent
            • BeforeRecordLanguageOverlayEvent
            • RecordAccessGrantedEvent
          • Html
            • BrokenLinkAnalysisEvent
          • Mail
            • AfterMailerInitializationEvent
            • AfterMailerSentMessageEvent
            • BeforeMailerSentMessageEvent
          • Package
            • AfterPackageActivationEvent
            • AfterPackageDeactivationEvent
            • BeforePackageActivationEvent
            • PackagesMayHaveChangedEvent
          • Page
            • BeforeJavaScriptsRenderingEvent
            • BeforeStylesheetsRenderingEvent
          • Password policy
            • EnrichPasswordValidationContextDataEvent
          • Resource
            • AfterDefaultUploadFolderWasResolvedEvent
            • AfterFileAddedEvent
            • AfterFileAddedToIndexEvent
            • AfterFileCommandProcessedEvent
            • AfterFileContentsSetEvent
            • AfterFileCopiedEvent
            • AfterFileCreatedEvent
            • AfterFileDeletedEvent
            • AfterFileMarkedAsMissingEvent
            • AfterFileMetaDataCreatedEvent
            • AfterFileMetaDataDeletedEvent
            • AfterFileMetaDataUpdatedEvent
            • AfterFileMovedEvent
            • AfterFileProcessingEvent
            • AfterFileRemovedFromIndexEvent
            • AfterFileRenamedEvent
            • AfterFileReplacedEvent
            • AfterFileUpdatedInIndexEvent
            • AfterFolderAddedEvent
            • AfterFolderCopiedEvent
            • AfterFolderDeletedEvent
            • AfterFolderMovedEvent
            • AfterFolderRenamedEvent
            • AfterResourceStorageInitializationEvent
            • AfterVideoPreviewFetchedEvent
            • BeforeFileAddedEvent
            • BeforeFileContentsSetEvent
            • BeforeFileCopiedEvent
            • BeforeFileCreatedEvent
            • BeforeFileDeletedEvent
            • BeforeFileMovedEvent
            • BeforeFileProcessingEvent
            • BeforeFileRenamedEvent
            • BeforeFileReplacedEvent
            • BeforeFolderAddedEvent
            • BeforeFolderCopiedEvent
            • BeforeFolderDeletedEvent
            • BeforeFolderMovedEvent
            • BeforeFolderRenamedEvent
            • BeforeResourceStorageInitializationEvent
            • EnrichFileMetaDataEvent
            • GeneratePublicUrlForResourceEvent
            • ModifyFileDumpEvent
            • ModifyIconForResourcePropertiesEvent
            • SanitizeFileNameEvent
          • Security
            • InvestigateMutationsEvent
            • PolicyMutatedEvent
          • Tree
            • ModifyTreeDataEvent
          • TypoScript
            • AfterTemplatesHaveBeenDeterminedEvent
            • EvaluateModifierFunctionEvent
        • Extbase
          • Configuration
            • BeforeFlexFormConfigurationOverrideEvent
          • Mvc
            • AfterRequestDispatchedEvent
            • BeforeActionCallEvent
          • Persistence
            • AfterObjectThawedEvent
            • EntityAddedToPersistenceEvent
            • EntityPersistedEvent
            • EntityRemovedFromPersistenceEvent
            • EntityUpdatedInPersistenceEvent
            • ModifyQueryBeforeFetchingObjectDataEvent
            • ModifyResultAfterFetchingObjectDataEvent
        • ExtensionManager
          • AfterExtensionDatabaseContentHasBeenImportedEvent
          • AfterExtensionFilesHaveBeenImportedEvent
          • AfterExtensionStaticDatabaseContentHasBeenImportedEvent
          • AvailableActionsForExtensionEvent
        • Filelist
          • ModifyEditFileFormDataEvent
          • ProcessFileListActionsEvent
        • Frontend
          • AfterCacheableContentIsGeneratedEvent
          • AfterCachedPageIsPersistedEvent
          • AfterLinkIsGeneratedEvent
          • AfterPageAndLanguageIsResolvedEvent
          • AfterPageWithRootLineIsResolvedEvent
          • BeforePageIsResolvedEvent
          • FilterMenuItemsEvent
          • ModifyCacheLifetimeForPageEvent
          • ModifyHrefLangTagsEvent
          • ModifyPageLinkConfigurationEvent
          • ModifyResolvedFrontendGroupsEvent
          • ShouldUseCachedPageDataIfAvailableEvent
        • FrontendLogin
          • BeforeRedirectEvent
          • LoginConfirmedEvent
          • LoginErrorOccurredEvent
          • LogoutConfirmedEvent
          • ModifyLoginFormViewEvent
          • PasswordChangeEvent
          • SendRecoveryEmailEvent
        • Impexp
          • BeforeImportEvent
        • Info
          • ModifyInfoModuleContentEvent
        • Install
          • ModifyLanguagePackRemoteBaseUrlEvent
          • ModifyLanguagePacksEvent
        • Linkvalidator
          • BeforeRecordIsAnalyzedEvent
          • ModifyValidatorTaskEmailEvent
        • Lowlevel
          • ModifyBlindedConfigurationOptionsEvent
        • Redirects
          • AfterAutoCreateRedirectHasBeenPersistedEvent
          • BeforeRedirectMatchDomainEvent
          • ModifyAutoCreateRedirectRecordBeforePersistingEvent
          • ModifyRedirectManagementControllerViewDataEvent
          • RedirectWasHitEvent
          • SlugRedirectChangeItemCreatedEvent
        • Seo
          • ModifyUrlForCanonicalTagEvent
        • Setup
          • AddJavaScriptModulesEvent
        • Workspaces
          • AfterCompiledCacheableDataForWorkspaceEvent
          • AfterDataGeneratedForWorkspaceEvent
          • AfterRecordPublishedEvent
          • GetVersionedDataEvent
          • ModifyVersionDifferencesEvent
          • SortVersionedDataEvent
      • Hooks
      • JavaScript Event API
        • Regular event
        • Debounce event
        • Throttle event
        • RequestAnimationFrame event
    • File abstraction layer (FAL)
      • Introduction
      • Basic concepts
      • Architecture
        • Overview
        • Folders
        • Database structure
        • Components
        • PSR-14 Events
      • Administration
        • Permissions
        • File storages
        • Maintenance
      • Using FAL
        • Using FAL in the Frontend
        • TCA Definition
        • The StorageRepository Class
        • Working With files, folders and file references
        • Working With Collections
        • Searching for files
      • File collections
    • Custom file processors
    • Flash messages
      • Flash messages API
      • Flash messages in Extbase
      • Flash messages renderer
      • JavaScript-based flash messages (Notification API)
    • FlexForms
    • Fluid
      • Introduction to Fluid
      • Fluid syntax
      • Using Fluid in TYPO3
      • cObject ViewHelper
      • Property additionalAttributes
      • Developing a custom ViewHelper
      • ViewHelper reference
    • FormEngine
      • Introduction
      • Main rendering workflow
      • Data compiling
      • Rendering
    • Form protection tool
    • Global values
      • Constants
    • Icon API
    • Link handling
      • Link handler configuration
      • LinkBrowser API
      • The LinkHandler API
        • The PageLinkHandler
        • The RecordLinkHandler
        • Implementing a custom LinkHandler
        • Events to modify link handler
      • Core link handler
      • Frontend link builder
      • LinkBrowser Tutorials
        • Browse records of a table
        • Create a custom link browser
    • Localization
      • Introduction
      • Supported languages
      • Managing translations
      • Translation servers
        • Localization with Crowdin
          • Extension integration
          • Online translation with Crowdin
          • Workflow
          • Frequently asked questions (FAQ)
        • Custom translation servers
      • Localization API
        • LanguageService
        • LanguageServiceFactory
        • Locale
        • LocalizationUtility (Extbase)
      • XLIFF Format
      • Working with XLIFF files
    • Locking API
    • Logging
      • Quickstart
      • Logger
      • Configuration of the logging system
      • The LogRecord model
      • Log writers
      • Log processors
    • Mail API
    • Message bus
    • Mount points
    • Namespaces
    • Page types
      • Introduction
      • Types of pages
      • X-Redirect-By header for pages with redirect types
      • Create new Page Type
    • Pagination
    • Parsing HTML
    • Password hashing
      • Troubleshooting
    • Password policies
    • Request Life Cycle
      • TYPO3 request attributes
        • Application type
        • Current content object
        • Frontend controller
        • Frontend TypoScript
        • Frontend user
        • Language
        • Module
        • ModuleData
        • Nonce
        • Normalized parameters
        • Route
        • Routing
        • Site
        • Target
      • Bootstrapping
      • Middlewares (Request handling)
      • TYPO3 request object
        • Application type
        • Current content object
        • Frontend controller
        • Frontend TypoScript
        • Frontend user
        • Language
        • Nonce
        • Normalized parameters
        • Routing
        • Site
        • Application type
        • Module
        • ModuleData
        • Nonce
        • Normalized parameters
        • Route
        • Site
        • Target
    • Routing - "Speaking URLs" in TYPO3
      • Introduction to Routing
      • Page based Routing
      • Advanced routing configuration (for extensions)
      • Extending Routing
      • Collection of various routing examples
    • Rich text editors (RTE)
      • CKEditor Rich Text Editor
      • Rendering in the Frontend
      • Rich text editors in the TYPO3 backend
        • Introduction
        • Plugging in a custom RTE
      • Rich Text Editors (RTE) in the TYPO3 frontend
        • Including a Rich Text Editor (RTE) in the frontend
      • RTE Transformations
        • Introduction
        • Transformation overview
      • Historical Perspective on RTE Transformations
        • Properties and Transformations
        • RTE Transformations in Content Elements
    • Search engine optimization (SEO)
      • Canonical API
      • MetaTag API
      • Page title API
      • XML sitemap
    • Services
      • Introduction
      • Using Services
        • Service precedence
        • Simple usage
        • Use with subtypes
        • Calling a chain of services
      • Configuration
        • Override service registration
        • Service configuration
        • Service type configuration
      • Developer's Guide
        • Introducing a new service type
        • Implementing a service
        • Service API
        • Services API
    • Session handling in TYPO3
      • User session management
      • Session storage framework
    • Site handling
      • Basics
      • Creating a new site configuration
      • Base variants
      • Adding Languages
      • Error handling
        • Page-based error handler
        • Fluid-based error handler
        • Writing a custom page error handler
      • Writing a custom page error handler
      • Static routes
      • Using environment variables in the site configuration
      • Using site configuration in TypoScript
      • Using site configuration in conditions
      • Using site configuration in TCA foreign_table_where
      • Site settings
      • CLI tools for site handling
      • PHP API: accessing site configuration
      • Extending site configuration
    • Soft references
    • Symfony expression language
    • System registry
    • TSFE
    • TCE (TYPO3 Core engine) & DataHandler
      • Introduction
      • Database: DataHandler basics (Formerly Known as TCEmain)
      • Using the DataHandler in scripts
      • The "/record/commit" Route
      • File Functions Basics
      • The "tce_file.php" API
    • Webhooks and reactions
    • Versioning and Workspaces
    • XCLASSes (Extending Classes)
  • Coding Guidelines
    • Introduction
    • PHP Coding Guidelines
      • PHP File Formatting
        • General Requirements for PHP Files
        • File Structure
        • PHP Syntax Formatting
        • Using phpDoc
      • PHP Architecture
        • Modeling Cross Cutting Concerns
          • Static Methods, static Classes, Utility Classes
          • Traits
          • Services
        • Working With Exceptions
        • General Links
      • Coding: Best practices
        • Accessing the Database
        • Singletons
        • Static Methods
        • Localization
        • Unit Tests
        • Handling Deprecation
        • Namespaces and Class Names of User Files
        • Hook Naming
    • JavaScript Coding Guidelines
    • TypeScript Coding Guidelines
    • TypoScript Coding Guidelines
    • TSconfig Coding Guidelines
    • Xliff Coding Guidelines
    • Yaml Coding Guidelines
    • reStructuredText (reST)
  • Configuration
    • Configuration overview
    • Glossary
    • Configuration files
    • Configuration module
    • Feature toggles
    • $GLOBALS
    • TYPO3_CONF_VARS
      • BE - backend configuration
      • DB - Database connections
      • EXT - Extension manager configuration
      • FE - frontend configuration
      • GFX - graphics configuration
      • HTTP - tune requests
      • LOG - Logging configuration
      • MAIL settings
      • SYS - System configuration
    • Global meta information about TYPO3
    • TypoScript
      • Introduction
      • Syntax
        • Identifiers
        • Code blocks
        • Operators
        • Comments
        • Conditions
        • File imports
      • Frontend TypoScript
      • TSconfig
      • PHP API
      • Myths and FAQ
    • User settings configuration
      • ['columns'] Section
      • ['showitem'] section
      • Extending the user settings
      • View the configuration
    • YAML
      • YAML API
      • YAML syntax
      • Services.yaml
  • Extension development
    • Concepts
      • Introduction
      • System, third-party and custom extensions
      • Further reading
    • File structure
      • composer.json
      • ext_conf_template.txt
      • ext_emconf.php
      • ext_localconf.php
      • ext_tables.php
      • ext_tables.sql
      • ext_tables_static+adt.sql
      • ext_typoscript_constants.typoscript
      • ext_typoscript_setup.typoscript
      • Classes
      • Configuration
        • Backend
        • Extbase
          • Persistence
        • TCA
        • TsConfig
        • TypoScript
        • ContentSecurityPolicies.php
        • Icons.php
        • page.tsconfig
        • RequestMiddlewares.php
        • Services.yaml
      • Documentation
      • Resources
        • Private
          • Language
        • Public
      • Tests
    • Howto
      • Backend modules
        • Backend GUI
        • Backend module configuration
        • Create a backend module with Core functionality
        • Create a backend module with Extbase
        • TypoScript configuration of modules
        • Module data object
        • Toplevel modules
        • Third-level modules / module functions
        • ModuleProvider API
        • Tutorials
      • Events
      • Extending the TCA array
        • Storing the changes
        • Customization Examples
        • Verifying the TCA
      • Frontend plugin
      • Localization
        • Multi-language Fluid templates
        • Localization in PHP
        • TypoScript
      • Publish your extension
        • Publish your extension in the TER
      • HTTP requests to external sources
      • Update your extension for new TYPO3 versions
        • Extension scanner
        • Upgrade wizards
          • The concept of upgrade wizards
          • Creating upgrade wizards
      • Configuration
      • Creating a new distribution
      • Creating a new extension
      • Custom Extension Repository
      • Adding documentation
      • Extension management
    • Extbase
      • Extbase introduction
      • Extbase reference
        • Model / Domain
          • Model
          • Persistence
          • Repository
          • Validator
        • Controller
          • ActionController
          • Error action
          • Property mapping
          • Type converters
        • View
        • URI builder (Extbase)
        • Registration of frontend plugins
        • TypoScript configuration
        • Annotations
        • Validation
        • Caching
        • Localization
      • Extbase Examples
    • Best practises and conventions
      • Choosing an extension key
      • Naming conventions
      • Configuration Files (ext_tables.php & ext_localconf.php)
      • Software Design Principles
    • Tutorials
      • Kickstart an Extension
        • Make
          • Create a new backend controller
          • Create a new console command
        • Sitepackage Builder
          • Minimal extension
      • Tea in a nutshell
        • Create an extension
        • Create a directory structure
        • Model: a bag of tea
        • Repository
        • Controller
      • Extension development with Extbase
  • Security guidelines
    • Introduction
    • The TYPO3 Security Team
    • General Information
    • Types of Security Threats
    • General guidelines
    • Guidelines for System Administrators
      • Role Definition
      • Integrity of TYPO3 Packages
      • File/directory permissions
      • Restrict access to files on a server-level
      • Disable directory indexing
      • File extension handling
      • Content security policy
      • Database access
      • Encrypted Client/server Communication
      • Other Services
      • Further Actions
    • Guidelines for extension development
    • Guidelines for TYPO3 integrators
      • Install tool
      • Global TYPO3 configuration options
      • Security-related warnings after login
      • Reports and logs
      • Users and access privileges
      • TYPO3 extensions
      • TypoScript
      • Content elements
    • Guidelines for editors
    • Backup strategy
    • Detect, analyze and repair a hacked site
      • Detect a hacked website
      • Take the website offline
      • Analyzing a hacked site
      • Repair/restore
      • Further actions
  • Testing
    • History
    • Core testing
    • Extension testing
    • Project testing
    • Writing unit tests
    • Writing functional tests
    • Writing acceptance tests
    • FAQ
  • About This Manual
  • Sitemap
  • Index

PAGE CONTENTS

  • Localization API
  1. Start
  2. API A-Z
  3. Localization
  4. Localization API
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