html中引入php

<div class="imgView" style="float: left;padding-right: 20px;">
                        <php>
                            $index = strrpos($vo,',');
                            $bigImg = substr ( $vo , 0, $index);
                            $smallImg = substr($vo,$index+1,strlen($vo)==0?0:strlen($vo)-1);
                        </php>
                        <a href="{$bigImg}" target="_blank"><img src="{$smallImg}" alt="pic"></a>
              </div>