The Config ComponentEdit this page
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Read the updated version of this page for Symfony 6.2 (the current stable version).
The Config Component
The Config component provides several classes to help you find, load, combine, autofill 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
Alternatively, you can clone the https://github.com/symfony/config repository.
If you install this component outside of a Symfony application, you must
vendor/autoload.php file in your code to enable the class
autoloading mechanism provided by Composer. Read
this article for more details.