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Installation
============
You have multiple ways to install Twig.
Installing the Twig PHP package
-------------------------------
Install `Composer`_ and run the following command:
.. code-block:: bash
composer require "twig/twig:^1.0"
Installing the C extension
--------------------------
.. versionadded:: 1.4
The C extension was added in Twig 1.4.
Twig comes with an **optional** C extension that improves the performance of the
Twig runtime engine.
Note that this extension does not replace the PHP code but only provides an
optimized version of the ``\Twig\Template::getAttribute()`` method; you must
still install the regular PHP code
The C extension is only compatible and useful for **PHP5**.
Install it like any other PHP extensions:
.. code-block:: bash
cd ext/twig
phpize
./configure
make
make install
For Windows:
1. Setup the build environment following the `PHP documentation`_
2. Put Twig's C extension source code into ``C:\php-sdk\phpdev\vcXX\x86\php-source-directory\ext\twig``
3. Use the ``configure --disable-all --enable-cli --enable-twig=shared`` command instead of step 14
4. ``nmake``
5. Copy the ``C:\php-sdk\phpdev\vcXX\x86\php-source-directory\Release_TS\php_twig.dll`` file to your PHP setup.
.. tip::
For Windows ZendServer, ZTS is not enabled as mentioned in `Zend Server
FAQ`_.
You have to use ``configure --disable-all --disable-zts --enable-cli
--enable-twig=shared`` to be able to build the twig C extension for
ZendServer.
The built DLL will be available in
``C:\\php-sdk\\phpdev\\vcXX\\x86\\php-source-directory\\Release``
Finally, enable the extension in your ``php.ini`` configuration file:
.. code-block:: ini
extension=twig.so # For Unix systems
extension=php_twig.dll # For Windows systems
And from now on, Twig will automatically compile your templates to take
advantage of the C extension.
.. _`download page`: https://github.com/twigphp/Twig/tags
.. _`Composer`: https://getcomposer.org/download/
.. _`PHP documentation`: https://wiki.php.net/internals/windows/stepbystepbuild
.. _`Zend Server FAQ`: https://www.zend.com/en/products/server/faq#faqD6
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