HTML DOM文档解析 [英] HTML DOM Document parsing

问题描述

我是新的DOM文档..
i有这个html：

i am new to DOM Document.. i have this html:

    <tr class="calendar_row" data-eventid="39657">
        <td class="alt1 eventDate smallfont" align="center">Sun<div class="eventday_multiple">Dec 9</div></td>
        <td class="alt1 smallfont" align="center">3:34am</td>
        <td class="alt1 smallfont" align="center">USD</td>
    </tr>

    <tr class="calendar_row" data-eventid="39658">
        <td class="alt1 eventDate smallfont" align="center">Sun<div class="eventday_multiple">Dec 10</div></td>
        <td class="alt1 smallfont" align="center">5:14am</td>
        <td class="alt1 smallfont" align="center">EUR</td>
    </tr>

我试图使用以下代码获取tr中的内容：

i am trying to get first the contents inside the tr's using this code:

    $ret = array();
    libxml_use_internal_errors(true); 
    $doc = new DOMDocument();
    $doc->loadHTML($html);
    //$doc->saveHTMLFile('textbox.php');

    $text = $doc->getElementsByTagName('tr');
    foreach ($text as $tag){
        $ret[] = $doc->saveHtml($tag); 
        echo $doc->saveHtml($tag); 
    }

我不知道为什么回显的值是整个文档，而不是值里面的tr的..

i dont know why the value being echoed was the whole document and not the values inside the tr's..

第二，我也想得到这些td标签之间的值，如5:14 AM，EUR等。但是我没有任何想法如何做到这一点。

second, i would like also to get the values in between those td tags like 5:14 AM,EUR,etc. but i dont have any idea how to do that.

赦免noob问题..

Pardon for noob question..

最好的问候

推荐答案

$doc = new DOMDocument();
$doc ->loadHTML("$html");
$tables = $doc->getElementsByTagName('table');
$table = $tables->item(0);//takes the first table in dom

foreach ($table->childNodes as $td) {
  if ($td->nodeName == 'td') {
    echo $td->nodeValue, "\n";
  }
}

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