求正则表达式完成这个需求,该如何解决

求正则表达式完成这个需求

<br /><img src="http://www.ke6.com/wp-content/uploads/2014/02/hbzy1.jpg" alt="hbzy" width="60" height="60" class="alignnone size-full wp-image-2100" /><br />

找到文章中这样的图片，替换成

<br /><div class="gif-box"><br /><img src="http://www.ke6.com/wp-content/uploads/2014/02/hbzy1.jpg!static" _src="http://www.ke6.com/wp-content/uploads/2014/02/hbzy1.jpg!static" class="alignnone size-full wp-image-2100" tsrc="http://www.ke6.com/wp-content/uploads/2014/02/hbzy1.jpg" width="60" height="60" /><br /><div class="gif-loading-box"><br /><i class="gif-loading" style="display:none;"></i><br /><i class="gif-play"></i><br /></div><br /></div><br />

如何写正则表达式，然后如何处理呢
------解决方案--------------------

$html = <<
<br /><img src="http://www.ke6.com/wp-content/uploads/2014/02/hbzy1.jpg" alt="hbzy" width="60" height="60" class="alignnone size-full wp-image-2100" /><br />





html;
$regImg = preg_match_all('//', $html, $matches) ;
$newSrc = $matches[1][0].'!static"'." _src=\"".$matches[1][0]."!static\" tsrc=\"".$matches[1][0];
$html = str_replace($matches[1][0], $newSrc, $html);
var_dump($html);