Installation
============
You have multiple ways to install Twig.
Installing the Twig PHP package
-------------------------------
Installing via Composer (recommended)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Install `Composer`_ and run the following command to get the latest version:
.. code-block:: bash
composer require twig/twig:~1.0
Installing from the tarball release
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. Download the most recent tarball from the `download page`_
2. Verify the integrity of the tarball http://fabien.potencier.org/article/73/signing-project-releases
3. Unpack the tarball
4. Move the files somewhere in your project
Installing the development version
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. code-block:: bash
git clone git://github.com/twigphp/Twig.git
Installing the PEAR package
~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. note::
Using PEAR for installing Twig is deprecated and Twig 1.15.1 was the last
version published on the PEAR channel; use Composer instead.
.. code-block:: bash
pear channel-discover pear.twig-project.org
pear install twig/Twig
Installing the C extension
--------------------------
.. versionadded:: 1.4
The C extension was added in Twig 1.4.
.. note::
The C extension is **optional** but it brings some nice performance
improvements. Note that the extension is not a replacement for the PHP
code; it only implements a small part of the PHP code to improve the
performance at runtime; you must still install the regular PHP code.
Twig comes with a C extension that enhances the performance of the Twig
runtime engine; install it like any other PHP extensions:
.. code-block:: bash
cd ext/twig
phpize
./configure
make
make install
.. note::
You can also install the C extension via PEAR (note that this method is
deprecated and newer versions of Twig are not available on the PEAR
channel):
.. code-block:: bash
pear channel-discover pear.twig-project.org
pear install twig/CTwig
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. Note that this extension does not replace the
PHP code but only provides an optimized version of the
``Twig_Template::getAttribute()`` method.
.. _`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`: http://www.zend.com/en/products/server/faq#faqD6
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