Quick Overview
Symfony Templating is a component of the Symfony PHP framework that provides a flexible and powerful templating system. It allows developers to separate the presentation logic from the business logic, making it easier to manage and maintain web applications.
Pros
- Flexible and extensible templating engine
- Supports multiple template formats (PHP, Twig)
- Integrates seamlessly with other Symfony components
- Provides performance optimization through caching
Cons
- Learning curve for developers new to Symfony
- May be overkill for simple projects
- Requires additional setup compared to plain PHP templates
- Performance overhead for very small applications
Code Examples
- Basic template rendering:
use Symfony\Component\Templating\PhpEngine;
use Symfony\Component\Templating\TemplateNameParser;
use Symfony\Component\Templating\Loader\FilesystemLoader;
$loader = new FilesystemLoader(__DIR__.'/views/%name%');
$templating = new PhpEngine(new TemplateNameParser(), $loader);
echo $templating->render('hello.php', ['name' => 'John']);
- Using helpers in templates:
use Symfony\Component\Templating\Helper\SlotsHelper;
$templating->set(new SlotsHelper());
// In the template file:
<?php $view['slots']->start('sidebar') ?>
<h3>Sidebar Content</h3>
<?php $view['slots']->stop() ?>
<?php echo $view['slots']->output('sidebar') ?>
- Extending templates:
// base.php
<html>
<head>
<title><?php echo $view['slots']->output('title', 'Default Title') ?></title>
</head>
<body>
<?php echo $view['slots']->output('body') ?>
</body>
</html>
// child.php
<?php $view->extend('base.php') ?>
<?php $view['slots']->set('title', 'My Page Title') ?>
<?php $view['slots']->start('body') ?>
<h1>Welcome to my page</h1>
<?php $view['slots']->stop() ?>
Getting Started
To use Symfony Templating in your project:
-
Install the component via Composer:
composer require symfony/templating
-
Set up the templating engine:
use Symfony\Component\Templating\PhpEngine; use Symfony\Component\Templating\TemplateNameParser; use Symfony\Component\Templating\Loader\FilesystemLoader; $loader = new FilesystemLoader(__DIR__.'/views/%name%'); $templating = new PhpEngine(new TemplateNameParser(), $loader);
-
Create a template file (e.g.,
views/hello.php
):<h1>Hello, <?php echo $name ?>!</h1>
-
Render the template:
echo $templating->render('hello.php', ['name' => 'World']);
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Templating Component
The Templating component provides all the tools needed to build any kind of template system.
It provides an infrastructure to load template files and optionally monitor them for changes. It also provides a concrete template engine implementation using PHP with additional tools for escaping and separating templates into blocks and layouts.
Getting Started
$ composer require symfony/templating
use Symfony\Component\Templating\Loader\FilesystemLoader;
use Symfony\Component\Templating\PhpEngine;
use Symfony\Component\Templating\Helper\SlotsHelper;
use Symfony\Component\Templating\TemplateNameParser;
$filesystemLoader = new FilesystemLoader(__DIR__.'/views/%name%');
$templating = new PhpEngine(new TemplateNameParser(), $filesystemLoader);
$templating->set(new SlotsHelper());
echo $templating->render('hello.php', ['firstname' => 'Fabien']);
// hello.php
Hello, <?= $view->escape($firstname) ?>!
Resources
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