preg_replace更改href值中的链接，但不在src中

Question

I need to replace urls in the page taken by curl and add correct link. My php curl code is:

<?php

$string = '<a href="http://host.org"><img src="./sec.png"></a>';

$string = preg_replace('/href="(http:\/\/([^\/]+)\/)?([^"]+)"/', "href=\"http://google.com/\\3\"", $string);

echo $string;

?>

When the link is "a" it cut all link and left only href value.

//from
<a href="http://host.org"><img src="./sec.png"></a>

//to BUGgg when href fix make :
<a href="http://google.com/./sec.png"></a>

Can any body help in fix it.

Answer 1

以下preg_replace应该工作：

preg_replace('/href="(http:\/\/[^\/"]+\/?)?([^"]*)"/', "href=\"http://google.com/\\2\"", $result);

Answer 2

从正则表达式中删除这个不必要的部分： ([^/]+)/