将em标签转换为链接

Question

标题清楚。

如何我这个小文章

Test article here. This is a <em>test test</em> article. 
This is the other <em>line</em>. 

转换成由PHP

Test article here. This is a <a href="http://stackoverflow.com/test test">test test</a> article. 
This is the other <a href="http://stackoverflow.com/line">line</a>. 

Answer 1

试试这个：

$code = preg_replace('!<em>(.+?)</em>!', '<a href="http://stackoverflow.com/\1">\1</a>', $code); 

Answer 2

这是jQuery的以防万一：

$("em").wrap("<a href='http://stackoverflow.com/"+$("em").html()+"'></a>"); 
$("em").contents().unwrap();