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php正则表达式提取html标签的问题

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Release： 2023-02-28 16:52:02
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php正则表达式提取html标签的问题

<tr>    
<td  Height="30"> 
·<a class="index_libiao" href="http://www.zh818.com/html/2014/033/7155319.aspx" 
title="3月14日上海钢材市场价格汇总" target="_blank">            	
<font color="#0000FF"> 3月14日上海钢材市场价格汇总</font>        
</a>
</td>    
<td align="Right">
<span class="biaotiriqi"> 3月14日</span>
</td>  
</tr>  
<tr>    
<td  Height="30"> 
·<a class="index_libiao" href="http://www.zh818.com/html/2014/033/7155318.aspx" 
title="3月14日北京钢材市场价格汇总" target="_blank">            	
<font color="#0000FF"> 3月14日北京钢材市场价格汇总</font>        
</a>
</td>    
<td align="Right">
<span class="biaotiriqi"> 3月14日</span>
</td>  
</tr>  
<tr>    
<td  Height="30"> 
·<a class="index_libiao" href="http://www.zh818.com/html/2014/033/7155317.aspx" 
title="3月14日天津钢材市场价格汇总" target="_blank">            	
<font color="#0000FF"> 3月14日天津钢材市场价格汇总</font>        
</a>
</td>    
<td align="Right">
<span class="biaotiriqi"> 3月14日</span>
</td>  
</tr>  
<tr>    
<td  Height="30"> 
·<a class="index_libiao" href="http://www.zh818.com/html/2014/033/7155316.aspx" 
title="3月14日重庆钢材市场价格汇总" target="_blank">            	
<font color="#0000FF"> 3月14日重庆钢材市场价格汇总</font>        
</a>
</td>    
<td align="Right">
<span class="biaotiriqi"> 3月14日</span>
</td>  
</tr>  
<tr>    
<td  Height="30"> 
·<a class="index_libiao" href="http://www.zh818.com/html/2014/033/7155315.aspx" 
title="3月14日广州钢材市场价格汇总" target="_blank">            	
<font color="#0000FF"> 3月14日广州钢材市场价格汇总</font>        
</a>
</td>
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我想获取所有×××的标签中间的内容，应该怎么写正则表达式呢

回复讨论(解决方案)

$pattern = "/<td Height=\"30\">([\s\S]*)<\/td>/"; 
preg_match_all($pattern, $str, $matches); 
var_dump($matches);
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测试可以通过

$pattern = "/<td Height=\"30\">([\s\S]*)<\/td>/"; 
preg_match_all($pattern, $str, $matches); 
var_dump($matches);
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测试可以通过
规则改下 

$pattern = "/<td  Height=\"30\">([\s\S]*?)<\/td>/"

preg_match_all("/<td\s+Height=\"30\">(.*)<\/td>/iUs", $str, $output);print_r($output);
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