daux.io/libs/Server/ErrorPage.php

<?php namespace Todaymade\Daux\Server;

use Todaymade\Daux\Format\HTML\SimplePage;
use Todaymade\Daux\Format\HTML\Template;

class ErrorPage extends SimplePage
{
    const NORMAL_ERROR_TYPE = 'NORMAL_ERROR';
    const MISSING_PAGE_ERROR_TYPE = 'MISSING_PAGE_ERROR';
    const FATAL_ERROR_TYPE = 'FATAL_ERROR';

    /**
     * @var \Todaymade\Daux\Config
     */
    private $params;

    /**
     * @param string $title
     * @param string $content
     * @param \Todaymade\Daux\Config $params
     */
    public function __construct($title, $content, $params)
    {
        parent::__construct($title, $content);
        $this->params = $params;
    }

    /**
     * @return string
     */
    protected function generatePage()
    {
        $params = $this->params;
        $page = [
            'title' => $this->title,
            'content' => $this->content,
            'language' => '',
        ];

        $template = new Template($params['templates'], $params['theme']['templates']);
        return $template->render('error', ['page' => $page, 'params' => $params]);
    }
}