谁能解释下这代码怎运行以及意思?这是用人家joomla模板 ?怎么不是用div划分的么?

<?php echo $view->position('banner2', 'art-nostyle'); if ($view->containsModules('breadcrumb')) echo artxPost($view->position('breadcrumb')); echo $view->positions(array('user1' => 50, 'user2' => 50), 'art-article'); echo $view->position('banner3', 'art-nostyle'); if ($view->hasMessages()) echo artxPost('<jdoc:include type="message" />'); echo '<jdoc:include type="component" />'; echo $view->position('banner4', 'art-nostyle'); echo $view->positions(array('user4' => 50, 'user5' => 50), 'art-article'); echo $view->position('banner5', 'art-nostyle'); ?>

答案：$view->position('banner2', 'art-nostyle');
$view----实例化的类
position()----类里面的函数
'banner2' ----传的参数

<jdoc:include type="message" />
jdoc:include 元素中的type属性指定要渲染的内容类型，属性值可以是component，head，installation，message，module，modules