mirror of
https://github.com/twigphp/Twig.git
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Martin Tournoij
80 lines
2.4 KiB
ReStructuredText
80 lines
2.4 KiB
ReStructuredText
Introduction
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============
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This is the documentation for Twig, the flexible, fast, and secure template
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engine for PHP.
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If you have any exposure to other text-based template languages, such as
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Smarty, Django, or Jinja, you should feel right at home with Twig. It's both
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designer and developer friendly by sticking to PHP's principles and adding
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functionality useful for templating environments.
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The key-features are...
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* *Fast*: Twig compiles templates down to plain optimized PHP code. The
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overhead compared to regular PHP code was reduced to the very minimum.
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* *Secure*: Twig has a sandbox mode to evaluate untrusted template code. This
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allows Twig to be used as a template language for applications where users
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may modify the template design.
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* *Flexible*: Twig is powered by a flexible lexer and parser. This allows the
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developer to define its own custom tags and filters, and create its own DSL.
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Prerequisites
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-------------
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Twig needs at least **PHP 5.2.4** to run.
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Installation
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------------
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The recommended way to install Twig is via Composer:
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.. code-block:: bash
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composer require "twig/twig:1.*"
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.. note::
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To learn more about the other installation methods, read the
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:doc:`installation<installation>` chapter; it also explains how to install
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the Twig C extension.
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Basic API Usage
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---------------
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This section gives you a brief introduction to the PHP API for Twig.
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.. code-block:: php
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require_once '/path/to/vendor/autoload.php';
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$loader = new Twig_Loader_String();
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$twig = new Twig_Environment($loader);
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echo $twig->render('Hello {{ name }}!', array('name' => 'Fabien'));
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Twig uses a loader (``Twig_Loader_String``) to locate templates, and an
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environment (``Twig_Environment``) to store the configuration.
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The ``render()`` method loads the template passed as a first argument and
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renders it with the variables passed as a second argument.
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As templates are generally stored on the filesystem, Twig also comes with a
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filesystem loader::
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$loader = new Twig_Loader_Filesystem('/path/to/templates');
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$twig = new Twig_Environment($loader, array(
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'cache' => '/path/to/compilation_cache',
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));
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echo $twig->render('index.html', array('name' => 'Fabien'));
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.. tip::
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If you are not using Composer, use the Twig built-in autoloader::
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require_once '/path/to/lib/Twig/Autoloader.php';
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Twig_Autoloader::register();
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