base.php

См. документацию.

<?php
 
namespace Bitrix\Main\Engine\Response\Render;
 
use Bitrix\Main\Application;
use Bitrix\Main\HttpResponse;
use CMain;
 
abstract class Base extends HttpResponse
{
    abstract protected function renderContent(): void;
 
    protected function __construct(
        bool $withSiteTemplate,
    )
    {
        parent::__construct();
 
        $this->fillContent($withSiteTemplate);
    }
 
    final protected function fillContent(bool $withSiteTemplate): void
    {
        global $APPLICATION;

 
        $APPLICATION->RestartBuffer();
 
        if ($withSiteTemplate)
        {
            $this->includeHeader();
        }
        else
        {
            $APPLICATION->ShowAjaxHead();
        }
 
        $this->renderContent();
 
        if ($withSiteTemplate)
        {
            $this->includeFooter();
        }
 
        $content = $APPLICATION->EndBufferContentMan();
 
        $this->setContent($content);
    }
 
    final protected function includeHeader(): void
    {
        require Application::getDocumentRoot() . '/bitrix/modules/main/include/prolog_after.php';
    }
 
    final protected function includeFooter(): void
    {
        require Application::getDocumentRoot() . '/bitrix/modules/main/include/epilog_before.php';
    }
}