我如何在包装器div中包装我的PHP for statement echos的每3个div？

I have this code:

我有这个代码:

                $limit = 8;
                for($x=0;$x<$limit;$x++) {
                    $title = substr(str_replace(' & ', ' &amp; ', $feed[$x]['title']), 0, 60);
                    $link = $feed[$x]['link'];
                    $description = substr(preg_replace('/\<a.*/', '', $feed[$x]['desc']),0 , 120) . " ... "; //$feed[$x]['desc'];
                    $image = preg_replace('/\?w.*/', '', $feed[$x]['image']);
                    $date = date('l F d, Y', strtotime($feed[$x]['date']));

                    echo '<div class="blog-item item col-md-4' . $rowOpen . '"><img src="' . $image . '"><div class="blog-item-info"><div class="title"><h3>'. $title . '</h3></div><div class="date">' . $date . '</div><div class="preview"><p>'. $description .'</p></div><a href="/go.html?url=' . $link .'"><button class="read-more">Read More</button></a></div></div></div>';

                    /*echo '<p><strong><a href="/go.html?url='.$link.'" title="'.$title.'">'.$title.'</a></strong><br />';
                    echo '<small><em>Posted on '.$date.'</em></small></p>';
                    echo $image;
                    //echo '<p>'.$description.'</p>';*/
                }
                $