从PHP中的html标签爆炸

问题描述：

i want to get the order number from below string.

$str = '<table class="adminlist">
<tbody><tr>
<td>Payment Name</td>
 <td align="left"><span class="vmpayment_name">Aurthorize.net</span><span class="vmpayment_description">New payment gateway</span></td>
</tr>
<tr>
<td>Order number</td>
 <td align="left">9b27041</td>
</tr>
<tr>
<td>Amount</td>
 <td align="left">51.30 USD</td>
</tr>
<tr>
<td>Transaction ID</td>
 <td align="left">2200484213</td>
</tr>
</tbody></table>';

How i explode in php. I have tried but not explode . I want order number from above string like

9b27041

And main thing is that all the values is dynamic :(

我想从下面的字符串中获取订单号。 p>

  $ str ='＆lt; table class =“adminlist”＆gt; 
＆lt; tbody＆gt;＆lt; tr＆gt; 
＆lt; td＆gt;付款名称＆lt; / td＆gt; 
＆lt; td align =“left”＆gt;＆lt; span  class =“vmpayment_name”＆gt; Aurthorize.net＆lt; / span＆gt;＆lt; span class =“vmpayment_description”＆gt;新的付款网关＆lt; / span＆gt;＆lt; / td＆gt; 
＆lt; / tr＆gt; 
＆lt; tr＆gt; 
＆lt;  td＆gt;订单号＆lt; / td＆gt; 
＆lt; td align =“left”＆gt; 9b27041＆lt; / td＆gt; 
＆lt; / tr＆gt; 
＆lt; tr＆gt; 
＆lt; td＆gt;金额＆lt; / td＆gt; 
＆lt;  td align =“left”＆gt; 51.30 USD＆lt; / td＆gt; 
＆lt; / tr＆gt; 
＆lt; tr＆gt; 
＆lt; td＆gt;交易ID＆lt; / td＆gt; 
＆lt; td align =“left”＆gt; 2200484213＆lt;  / td＆gt; 
＆lt; / tr＆gt; 
＆lt; / tbody＆gt;＆lt; / table＆gt;'; 
  code>  pre> 
 
 我如何在php中爆炸。 我试过但没有爆炸。 我想要上面字符串的订单号，如 p> 
 
 
 
  9b27041  p> 
  blockquote> 
 
 
主要的是所有值 是动态的：（ p> 
  div>

答

I think xpath is a good way to extract the value. For this I assume that the position of the order number row is allways the same. The code below does the trick for me.

     <?php
$str = '<table class="adminlist">
    <tbody><tr>
        <td>Payment Name</td>
        <td align="left"><span class="vmpayment_name">Aurthorize.net</span><span class="vmpayment_description">New payment gateway</span></td>
    </tr>
    <tr>
        <td>Order number</td>
        <td align="left">9b27041</td>
    </tr>
    <tr>
        <td>Amount</td>
        <td align="left">51.30 USD</td>
    </tr>
    <tr>
        <td>Transaction ID</td>
        <td align="left">2200484213</td>
    </tr>
    </tbody></table>';


$dom = new DOMDocument();
$dom->loadHTML($str);
$xpath = new DOMXPath($dom);
$nodes = $xpath->query("//tr[2]/td[2]");

$node = $nodes->item(0);
echo $node->textContent;

答

Almost impossible to do, PHP cant know where the Order number begins. Try jQuery, give the the class="order_nr" and you can access it easiely.

Only possibility in PHP would be to use strip_tags($str) and then look how to get the order nr from the remaining string.

答

you can use "PHP Simple HTML DOM parser" its great solution for problems like that, you can read more about it here http://simplehtmldom.sourceforge.net/

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