正则表达式 - 如何用php匹配出这段代码？

<code><div>
   <div>
    <span><span>网盘链接： </span> </span> 
    <span><a href="/ntcweb?id=d866a750-9cec-430a-9ea0-5cfbd6a2007a&level=2&pg=webz&uID=thJP9WeIiHG9tvFy&g_ut=2&key=jgf&url=http%3A%2F%2Fwww.×××××××.com%2Fs%2F1qX18Rky">http://www.×××××××.com/s/1qX18Rky</a> </span> 
   </div> 
   <div></div>
  </div></code>

<code><div>
   <div>
    <span><span>网盘链接： </span> </span> 
    <span><a href="/ntcweb?id=d866a750-9cec-430a-9ea0-5cfbd6a2007a&level=2&pg=webz&uID=thJP9WeIiHG9tvFy&g_ut=2&key=jgf&url=http%3A%2F%2Fwww.×××××××.com%2Fs%2F1qX18Rky">http://www.×××××××.com/s/1qX18Rky</a> </span> 
   </div> 
   <div></div>
  </div></code>

<code class="php"><?php
$text = <<<TEXT
<div>
   <div>
    <span><span>网盘链接： </span> </span>
    <span><a href="/ntcweb?id=d866a750-9cec-430a-9ea0-5cfbd6a2007a&level=2&pg=webz&uID=thJP9WeIiHG9tvFy&g_ut=2&key=jgf&url=http%3A%2F%2Fwww.×××××××.com%2Fs%2F1qX18Rky">http://www.×××××××.com/s/1qX18Rky</a> </span>
   </div>
   <div></div>
  </div>
TEXT;

preg_match('/<a [^>]+>([^<]+)<\/a>/', $text, $matches);
print_r($matches);
?></code>

<code>/(?<=<a [^>]*>)[^<]*(?=<\/a>)/</code>