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Germania KG · TwigServiceProvider

Pimple Service Provider for Twig templating engine

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Installation with Composer

$ composer require germania-kg/twigserviceprovider

Alternatively, add this package directly to your composer.json:

"require": {
    "germania-kg/twigserviceprovider": "^1.0|^2.0"
}

The v2 release requires PHP 7.3+ and Twig from v2 and up.

Setup

Have your Pimple dependency container at hand and register the TwigServiceProvider:

<?php
use Germania\TwigServiceProvider\TwigServiceProvider;
use Pimple\Container;

$pimple = new Container;
$pimple->register( new TwigServiceProvider );

Usage

Once you've registered the TwigServiceProvider, you can grab and use your Twig_Environment like this:

<?php
$twig_environment = $pimple['Twig'];
echo $twig_environment->render('template', [ 'foo' => 'bar']);

From v2 of this package, with Twig v2 and up, this is also possible:

$twig_environment = $pimple[ \Twig\Environment::class ];

…There are more services, see Services section

Configuration

The default options

<?php
$options = array(
	// For Twig's Filesystem Loader (string or array)
	'templates' => '/path/to/templates',

	// The most important Twig Environment options
	'debug' => false,
	'cache' => '/path/to/cache',
	'auto_reload' => true,
	'autoescape'  => false,
	'strict_variables' => false	
);

You can refine these options by either passing those you like to override to the constructor or extending the Twig.Config service at runtime:

Override on instantiation

<?php
use Germania\TwigServiceProvider\TwigServiceProvider;

$custom_options = [
	'templates' => [ 
		'/another/path/to/templates',
		__DIR__ . '/vendor/foo/bar/templates'
	],
    'strict_variables' => true
];

$pimple->register( new TwigServiceProvider( $custom_options ));

Override at runtime

<?php
$pimple->register( new TwigServiceProvider );

$pimple->extend('Twig.Config', function( $defaults, $pimple) {
	return array_merge( $defaults, [
		'templates'  => $pimple['custom.templates'],
		'strict_variables' => getenv('STRICT_ONLY')
	]);
});

Other Services

Twig.Options

Per default, the Twig_Environment instance is built with the “most important” options defined configuration—see Configuration section.. You may add other options, like so:

// @return array
$pimple->extend('Twig.Options', function($options, $pimple) {
	return array_merge($options, [
		'charset' => 'iso-8859-1',
		'optimizations' => 0
	]);
});

Twig.CachePath

// @return string
$pimple->extend('Twig.CachePath', function($old, $pimple) {
	return __DIR__ . '/var/cache';
});

Twig.TemplatePaths

// @return array
$pimple->extend('Twig.TemplatePaths', function($paths, $pimple) {
	return array_merge($paths, [
		'another/one',
		'vendor/name/package/templates'
	]);
});

Twig.Loaders

This service per default contains only the Twig_Loader_Filesystem instance; To add one or more others, add them to the $loaders array:

// @return array
$pimple->extend('Twig.Loaders', function($loaders, $pimple) {
	return array_merge($loaders, [
			new Twig_Loader_Array( [ ... ] )
	]);
});

All loaders in $loaders will automatically be chained via Twig's Twig_Loader_Chain.

See Twig developer docs for full description.

Other services

All these services return an (empty) array you may extend with custom data. They all will be added into the Twig_Environment.

// @return array
$pimple->extend( 'Twig.Globals', ... );
$pimple->extend( 'Twig.Filters', ... );
$pimple->extend( 'Twig.Tests', ... );
$pimple->extend( 'Twig.Functions', ... );
$pimple->extend( 'Twig.Extensions', ... );

Development

$ git clone https://github.com/GermaniaKG/TwigServiceProvider.git
$ cd TwigServiceProvider
$ composer install

Unit tests

Either copy phpunit.xml.dist to phpunit.xml and adapt to your needs, or leave as is. Run PhpUnit test or composer scripts like this:

$ composer test
# or
$ vendor/bi

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Pimple Service Provider for Twig templating engine

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