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+``convert_encoding``
+====================
+
+.. versionadded:: 1.4
+    The ``convert_encoding`` filter was added in Twig 1.4.
+
+The ``convert_encoding`` filter converts a string from one encoding to
+another. The first argument is the expected output charset and the second one
+is the input charset:
+
+.. code-block:: jinja
+
+    {{ data|convert_encoding('UTF-8', 'iso-2022-jp') }}
+
+.. note::
+
+    This filter relies on the `iconv`_ or `mbstring`_ extension, so one of
+    them must be installed. In case both are installed, `mbstring`_ is used by
+    default (Twig before 1.8.1 uses `iconv`_ by default).
+
+Arguments
+---------
+
+ * ``from``: The input charset
+ * ``to``:   The output charset
+
+.. _`iconv`:    http://php.net/iconv
+.. _`mbstring`: http://php.net/mbstring