TwigViewRenderer.php

<?php
/**
 * Twig view renderer class file.
 *
 * @link http://www.yiiframework.com/
 * @copyright Copyright &copy; 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

namespace app\helpers;

use Yii;
use yii\base\View;
use yii\twig\ViewRenderer;
use yii\helpers\Html;

/**
 * TwigViewRenderer allows you to use Twig templates in views.
 *
 * @author Pascal Brewing <[email protected]>
 * @since 2.0
 */
class TwigViewRenderer extends ViewRenderer
{

	public function init()
	{
		parent::init();

        $this->twig->addGlobal('typo',new \app\helpers\Typo());
        $this->loadExtensions();
	}

    /**
     * Loads predefined extensions
     */
    protected function loadExtensions()
    {
        $this->addTwigExtension(new TwigExtensions());

        if(YII_DEBUG)
            $this->addTwigExtension(new \Twig_Extension_Debug());
    }

    /**
     * Adds an extension
     *
     * @param Twig_ExtensionInterface $extension
     */
    public function addTwigExtension(\Twig_ExtensionInterface $extension)
    {
        $this->twig->addExtension($extension);
    }

}