如何使的preg_match与后退符号

Question

在代码

<td><span class="user "><i class="arrived" title="Провинциалист"></i><a href="/player/154646/">-Ваня-</a><span class="level">[5]</span></span></td> 
<td class="value"></td> 
<td><span class="user "><i class="arrived" title="Провинциалист"></i><a href="/player/174078/">asen</a><span class="level">[6]</span></span></td> 
<td class="value"></td> 
<td><span class="user "><i class="arrived" title="Провинциалист"></i><a href="/player/198745/">jsan</a><span class="level">[7]</span></span></td> 
<td class="value"></td> 
<td><span class="user "><i class="arrived" title="Провинциалист"></i><a href="/player/1698735/">aseto</a><span class="level">[8]</span></span></td> 
<td class="value"></td>` 

我怎样才能做到和1-ST上做“电平” preg_match> [”和如果该号码是> = 6和< 8然后在此数字之前做同一行上的preg_match，例如第一个preg_match级别>> [6]，并看到它等于，然后在播放机上制作preg_match并且看到该数字是“174078”

Answer 1

对于给定的HTML你可以使用类似

/<a.*href="(.*?)".*"level">\[[67]\]/ 

但这真的很丑。我宁愿使用XPath来grep HTML元素：http://php.net/manual/de/class.domxpath.php