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``reverse``
===========

.. versionadded:: 1.6
    Support for strings has been added in Twig 1.6.

The ``reverse`` filter reverses a sequence, a mapping, or a string:

.. code-block:: twig

    {% for user in users|reverse %}
        ...
    {% endfor %}

    {{ '1234'|reverse }}

    {# outputs 4321 #}

.. tip::

    For sequences and mappings, numeric keys are not preserved. To reverse
    them as well, pass ``true`` as an argument to the ``reverse`` filter:

    .. code-block:: twig

        {% for key, value in {1: "a", 2: "b", 3: "c"}|reverse %}
            {{ key }}: {{ value }}
        {%- endfor %}

        {# output: 0: c    1: b    2: a #}

        {% for key, value in {1: "a", 2: "b", 3: "c"}|reverse(true) %}
            {{ key }}: {{ value }}
        {%- endfor %}

        {# output: 3: c    2: b    1: a #}

.. note::

    It also works with objects implementing the `Traversable`_ interface.

Arguments
---------

* ``preserve_keys``: Preserve keys when reversing a mapping or a sequence.

.. _`Traversable`: https://secure.php.net/Traversable

Filemanager

Name Type Size Permission Actions
abs.rst File 254 B 0644
batch.rst File 1.11 KB 0644
capitalize.rst File 232 B 0644
column.rst File 555 B 0644
convert_encoding.rst File 776 B 0644
country_name.rst File 936 B 0644
currency_name.rst File 995 B 0644
currency_symbol.rst File 989 B 0644
data_uri.rst File 1.3 KB 0644
date.rst File 3.09 KB 0644
date_modify.rst File 629 B 0644
default.rst File 856 B 0644
escape.rst File 3.75 KB 0644
filter.rst File 1.24 KB 0644
first.rst File 527 B 0644
format.rst File 395 B 0644
format_currency.rst File 1.75 KB 0644
format_date.rst File 821 B 0644
format_datetime.rst File 1.95 KB 0644
format_number.rst File 2.6 KB 0644
format_time.rst File 821 B 0644
html_to_markdown.rst File 1.77 KB 0644
index.rst File 446 B 0644
inky_to_html.rst File 987 B 0644
inline_css.rst File 1.62 KB 0644
join.rst File 787 B 0644
json_encode.rst File 655 B 0644
keys.rst File 218 B 0644
language_name.rst File 1003 B 0644
last.rst File 519 B 0644
length.rst File 723 B 0644
locale_name.rst File 985 B 0644
lower.rst File 151 B 0644
map.rst File 891 B 0644
markdown_to_html.rst File 1.67 KB 0644
merge.rst File 1.34 KB 0644
nl2br.rst File 428 B 0644
number_format.rst File 1.59 KB 0644
raw.rst File 1.25 KB 0644
reduce.rst File 822 B 0644
replace.rst File 608 B 0644
reverse.rst File 1.04 KB 0644
round.rst File 860 B 0644
slice.rst File 2.17 KB 0644
sort.rst File 351 B 0644
spaceless.rst File 1.81 KB 0644
split.rst File 1.39 KB 0644
striptags.rst File 600 B 0644
timezone_name.rst File 1.08 KB 0644
title.rst File 254 B 0644
trim.rst File 1.02 KB 0644
u.rst File 1.61 KB 0644
upper.rst File 151 B 0644
url_encode.rst File 1.08 KB 0644