正则匹配问题 求指教
获取一个A标签的Href属性
被匹配的字符
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->preg_match('/<a>/i', $str, $matches)</a>
$str=连接1<a class="a" href="http://www.baidu.com/" id="a2">连接2</a><a class="a" href="http://www.baidu.com/" id="a3">连接3</a><a class="a" href="http://www.baidu.com/%20id=" a3>连接3</a>STR;preg_match_all('/<a>]+href=(["\']?)([^\s"\']+)\1[^>]*>/',$str,$matches);print_r($matches[2]);<br><font color="#e78608">------解决方案--------------------</font><br><dl class="code">PHP code<pre class="brush:php;toolbar:false">$str=连接1
[User:root Time:14:14:52 Path:/home/liangdong/php]$ php preg.php Array( [0] => Array ( [0] => <div class="a" href="http://www.baidu.com/"> <div class="a" href="http://www.baidu.com/"> <div class="a" href="http://www.baidu.com/"> Array ( [0] => " [1] => ' [2] => ) [2] => Array ( [0] => http://www.baidu.com/ [1] => http://www.baidu.com/ [2] => http://www.baidu.com/ ))[User:root Time:14:14:53 Path:/home/liangdong/php]$ cat preg.php <?php $str = <<<EOF<div class="a" href="http://www.baidu.com/" id="a1">连接1<div class="a" href="http://www.baidu.com/" id="a2">连接2<div class="a" href="http://www.baidu.com/" id="a3">连接3EOF;preg_match_all('/<div class="a" href="(%5B%22%5C'%5D?)(%5B%5E%5Cs%5C'%22%5D*)%5C1/is',"><div class="clear"> </div></div> </div> </div> </div> </div> </div>