PHP Dom解析 - 如何获得多个孩子

不完全确定我问这个正确，但在这里。我有以下结构的HTML文件：使用PHP Dom解析 - 如何获得多个孩子

 $programname = $xpath->query('//span[@class="prog_name"]');

<div class="tbody"> 
    <div class="row"> 
    <div class="col th"> 
    <a class="channel_sched_link" href="javascript:void(0)" title="Channel A schedule" data-channelid="9"> 
    <img src="http://xxxxx/images/tv/A.JPG" width="30" height="20"  alt="Channel A" />Channel A </a> 
    </div> 
    <div class="prog_cols"> 
    <div class="col ts ts_1 prog_802176 ps_0" data-catid="" > 
    <span class="prog_name">First Program</span> 
    <div class="prog_time">February 24, 2015, 4:00 pm - 6:00 pm</div> 
    <a class="btn_watchlist " href="javascript:void(0)" data-progid="802176"> (+) add to watchlist</a> 
<div class="prog_desc"> 
This is the first program for channel A.<br/> 
<a class="watchnow" href="http://xxxx/channels/?q=Channel A">Watch Now</a> 
</div> 
</div> 
<div class="col ts ts_3 prog_802177 ps_1" data-catid="" > 
<span class="prog_name">Second Program</span> 
<div class="prog_time">February 24, 2015, 6:00 pm - 8:00 pm</div> 
<a class="btn_watchlist " href="javascript:void(0)" data-progid="802177">(+)  add to watchlist</a> 
<div class="prog_desc"> 
This is the second program for channel A.<br/> 
<a class="watchnow" href="http://www.xxxxx/channels/?q=Channel A">Watch Now</a> 
</div> 
</div> 
</div> 
<a class="watchnow" href="http://xxxx/channels/?q=Channel A">Watch Now</a> 
</div> 
<div class="row"> 
<div class="col th"> 
<a class="channel_sched_link" href="javascript:void(0)" title="Channel B  schedule" data-channelid="1"> 
<img src="http://xxxx/images/tv/B.gif" width="30" height="20" alt="Channel B"                               />Channel B </a> 
</div> 
<div class="prog_cols"> 
<div class="col ts ts_1 prog_802210 news ps_0" data-catid="news" > 
<span class="prog_name">First Program</span> 
<div class="prog_time">February 24, 2015, 5:00 pm - 6:00 pm</div> 
<a class="btn_watchlist " href="javascript:void(0)" data-progid="802210">(+) add to watchlist</a> 
<div class="prog_desc"> 
First Program Channel B.<br/> 
<a class="watchnow" href="http://xxxxxx/channels/?q=Channel B">Watch Now</a> 
</div> 
</div>

我能够解析PROG_NAME每个通道但只为PROG_NAME的第一个实例一旦我得到这个我现在的储蓄它连同其他信息一起传递给一个xml文件。我如何解析每个通道的每个prog_name。我知道这可能与循环有关，但我无所适从。并非每个通道都具有相同数量的prog_name。

来源

2015-03-03 B Todd Poole

是它有事情做一个循环，你可以用'foreach' – Ghost 2015-03-03 01:13:26

这正常工作与你的HTML：

$dom = new DOMDocument(); 
$dom->loadHTML($html); 
$xpath = new DOMXpath($dom); 
$childs = $xpath->query('//span[@class="prog_name"]'); 

foreach ($childs as $child) 
{ 
    var_dump($child->nodeValue); 
}

它返回：

string(13) "First Program" 
string(14) "Second Program" 
string(13) "First Program"

来源

2015-03-03 01:24:00 alfallouji

PHP Dom解析 - 如何获得多个孩子

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