求正责表达式解决方案

求正责表达式
匹配 这个连接里的 http://so.letv.com/list/c2_t28_a-1_y-1_f_at_o1_p.html
这个里面的 “共25集全”就是列表图片上面显示的文字。



下面的代码来至于 这个连接：http://so.letv.com/list/c2_t28_a-1_y-1_f_at_o1_p.html

<dl class="m_dl">

<dt>

<a href="http://so.letv.com/tv/44734.html" 

title="暗流" target="_blank"><img

src="http://img1.c3.letv.com/ptv/letv_vrs/2011/7/tv/1112ccf654294486989818d3d5a58c35.jpg"

alt="求正责表达式解决方案"

onerror="this.src='http://img1.c0.letv.com/ptv/images/nlist/onpic.jpg';" /> 

                          

                          <em></em>

                       

                      <i>共25集全</i>

                         

                      

                         

 

<b class="null"></b>

 

</a>

</dt>

<dd>

<strong><a href="http://so.letv.com/tv/44734.html"

title="暗流" target="_blank">暗流</a>

</strong>

</dd>

<dd>

主演：



<a href="http://so.letv.com/star?wd=%E5%91%A8%E8%8E%89&from=list"

target="_blank" title="周莉" >周莉</a>



<a href="http://so.letv.com/star?wd=%E6%96%87%E7%AB%A0&from=list"

target="_blank" title="文章" >文章</a>



</dd>



<dd>

评价：

<span class="sorce2"><i>5.3</i> </span>

</dd>

</dl>



<dl class="m_dl">

<dt>

<a href="http://so.letv.com/tv/47973.html" 

title="复仇第1季" target="_blank"><img

src="http://img1.c3.letv.com/ptv/letv_vrs/2011/9/b53d231d391842d38db397682f6836cc.jpg"

alt="求正责表达式解决方案"

onerror="this.src='http://img1.c0.letv.com/ptv/images/nlist/onpic.jpg';" /> 

                          

                          <em></em>

                        
 

                          <i> 更新到18集</i>

                        

                      

                         

 

<b class="null"></b>

 

</a>

</dt>

<?php
$str=file_get_contents('http://so.letv.com/list/c2_t28_a-1_y-1_f_at_o1_p.html');
preg_match_all('/<\/em>\s*<i>(.*)<\/i>/sU',$str,$matchs);
print_r($matchs[1]);