$str = "<a href='http://www.baidu.com' target='_blank'>百度</a>http://www<a href='http://www.sina.com' target='_blank'>新浪</a>";
preg_match_all(" <a href=([\"\'])(http:\/\/([\w\d\.])+)[^>]*>(.*?)<\/a>",$str,$matches);
echo "<pre>";
var_dump($matches[2]);
echo "<br />";
var_dump($matches[4]);
匹配邮箱 代码如下:
$emails = "wangzhanu@126.comha12wangzhanu@163.com";
preg_match_all("/ ([a-z0-9_\-\.]+)@(([a-z0-9]+[_\-]?)\.)+[a-z]{2,3}/i",$emails,$matches);
var_dump($matches[0]);
匹配手机以及电话号码 代码如下:
$tel = "13911112222sf010-44444442dfg18811112222";
preg_match_all("/ 1[3,5,8]{1}[0-9]{1}[0-9]{8}|0[0-9]{2,3}-[0-9]{7,8}(-[0-9]{1,4})?/",$tel,$matches);
var_dump($matches);
备注:如果是java中要用到正则表达式,需要注意转义字符.以匹配网址的正则表达式为例:String ReguPattern = "<a class=\"title\" target=\"_blank\" href=([\"\'])(http:\\/\\/([\\w\\d\\.])+)[^>]*>(.*?)</a>";
原文链接：https://www.f2er.com/regex/361339.html