.. index:: single: Config single: Components; Config
The Config component provides several classes to help you find, load, combine, fill and validate configuration values of any kind, whatever their source may be (YAML, XML, INI files, or for instance a database).
$ composer require symfony/config
.. toctree:: :maxdepth: 1 :glob: config/* /bundles/configuration /bundles/extension /bundles/prepend_extension