<?php
$content = '<div id="mainpic"><a href="http://t.douban.com/lpic/s3984108.jpg" title="目送"><img src="http://t.douban.com/mpic/s3984108.jpg" title="点击看大图" alt="目送"></a>';
$content = stripslashes($content);
preg_match_all("/<img.+src=(('|\")(.+)('|\"))/Uis",$content,$out);
print_r($out[1]);
$content="<table cellspacing=0 cellpadding=0>
<tbody>
<tr>
<td>
<div align='center'><img alt='' src='../imgs/news/051019/0936372.jpg' /> </div>
<a href='../imgs/news/051019/0936371.jpg'>fd</a> </td>
</tr>
</tbody>
</table> ";
$content = stripslashes($content);
preg_match_all("/<img.+src=(('|\")(.+)('|\"))/Uis",$content,$out);
print_r($out[1]);
?>