Oct 4, 2021 · Sep 27, 2021
diff --git a/components/runtime.rst b/components/runtime.rst
    knows how to deal with each of them.
 ``error_handler`` (default: :class:`Symfony\\Component\\Runtime\\Internal\\BasicErrorHandler` or :class:`Symfony\\Component\\Runtime\\Internal\\SymfonyErrorHandler` for ``SymfonyRuntime``)
    Defines the class to use to handle PHP errors.
 ``env_var_name`` (default: ``"APP_ENV"``)
    To define the name of the env var for the Symfony env.
 ``debug_var_name`` (default: ``"APP_DEBUG"``)
    To define the name of the debug var for the debug flag.

 .. versionadded:: 5.4

    The ``env_var_name`` and ``debug_var_name`` options was introduced in Symfony 5.4.

 Create Your Own Runtime
 -----------------------
Original file line number	Diff line number	Diff line change
Expand Up		@@ -351,6 +351,14 @@ these options:
		knows how to deal with each of them.
		``error_handler`` (default: :class:`Symfony\\Component\\Runtime\\Internal\\BasicErrorHandler` or :class:`Symfony\\Component\\Runtime\\Internal\\SymfonyErrorHandler` for ``SymfonyRuntime``)
		Defines the class to use to handle PHP errors.
		``env_var_name`` (default: ``"APP_ENV"``)
		To define the name of the env var for the Symfony env.
		``debug_var_name`` (default: ``"APP_DEBUG"``)
		To define the name of the debug var for the debug flag.

		.. versionadded:: 5.4

		The ``env_var_name`` and ``debug_var_name`` options was introduced in Symfony 5.4.

		Create Your Own Runtime
		-----------------------
Expand Down