正则匹配问题 求指教 本帖最后由 laoyanang 于 2012-06-09 12:57:19 编辑 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 $str=<<<STR<a class="a" href="http://www.baidu.com/" id="a1">连接1</a><a class="a" href='http://www.baidu.com/' id="a2">连接2</a><a class="a" href=http://www.baidu.com/ id="a3">连接3</a><a class="a" href="http://www.baidu.com/ id="a3">连接3</a>STR;preg_match_all('/<a[^>]+href=(["\']?)([^\s"\']+)\1[^>]*>/',$str,$matches);print_r($matches[2]); $str=<<<html<div class="a" href="http://www.baidu.com/" id="a1">连接1</a><div class="a" href='http://www.baidu.com/' id="a2">连接2</a><div class="a" href=http://www.baidu.com/ id="a3">连接3</a>html;preg_match_all('/href=(["\'])?([^\s"\']+)/is', $str, $matches) ;print_r($matches);Array( [0] => Array ( [0] => href="http://www.baidu.com/ [1] => href='http://www.baidu.com/ [2] => href=http://www.baidu.com/ ) [1] => Array ( [0] => " [1] => ' [2] => ) [2] => Array ( [0] => http://www.baidu.com/ [1] => http://www.baidu.com/ [2] => http://www.baidu.com/ )) [User:root Time:14:14:52 Path:/home/liangdong/php]$ php preg.php Array( [0] => Array ( [0] => <div class="a" href="http://www.baidu.com/" [1] => <div class="a" href='http://www.baidu.com/' [2] => <div class="a" href=http://www.baidu.com/ ) [1] => 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</a><div class="a" href='http://www.baidu.com/' id="a2">连接2</a><div class="a" href=http://www.baidu.com/ id="a3">连接3</a>EOF;preg_match_all('/<div class="a" href=(["\']?)([^\s\'"]*)\1/is', $str, $matches);print_r($matches);?> 弱爆了:一条sql语句,phpmyadmin可以执行,mysql控制台可以执行,php执行却报错 ClearSilver 高手看下这段函数错在哪里??? 50分求解 PHP与fckeditor 问一个utf8格式数据问题 我的mysql_front在对象浏览器里的中文是乱码的? 大家好!难道一定要说MM,才有人回答我的问题吗? 聊天室很多说话的人,当我点击某人的名字是,能表示对这个人说话,如何实现(鸟儿兄请进) 请问如下代码怎么更正?在线等,马上散分! php怎么连接mysql-proxy PHP绘制文字程序出错,求解 PHP脚本导入SQL文件自动终止问题
<a class="a" href="http://www.baidu.com/" id="a1">连接1</a>
<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/ id="a3">连接3</a>
STR;preg_match_all('/<a[^>]+href=(["\']?)([^\s"\']+)\1[^>]*>/',$str,$matches);
print_r($matches[2]);
<div class="a" href="http://www.baidu.com/" id="a1">连接1</a>
<div class="a" href='http://www.baidu.com/' id="a2">连接2</a>
<div class="a" href=http://www.baidu.com/ id="a3">连接3</a>
html;
preg_match_all('/href=(["\'])?([^\s"\']+)/is', $str, $matches) ;
print_r($matches);
Array
(
[0] => Array
(
[0] => href="http://www.baidu.com/
[1] => href='http://www.baidu.com/
[2] => href=http://www.baidu.com/
) [1] => Array
(
[0] => "
[1] => '
[2] =>
) [2] => Array
(
[0] => http://www.baidu.com/
[1] => http://www.baidu.com/
[2] => http://www.baidu.com/
))
Array
(
[0] => Array
(
[0] => <div class="a" href="http://www.baidu.com/"
[1] => <div class="a" href='http://www.baidu.com/'
[2] => <div class="a" href=http://www.baidu.com/
) [1] => 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</a>
<div class="a" href='http://www.baidu.com/' id="a2">连接2</a>
<div class="a" href=http://www.baidu.com/ id="a3">连接3</a>
EOF;
preg_match_all('/<div class="a" href=(["\']?)([^\s\'"]*)\1/is', $str, $matches);
print_r($matches);
?>