解析Java脚本中HTML标记的最佳方法 [英] The best way to parse HTML tags in java-script
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问题描述
任何可以解析HTML标签的人/帮助都可以出现在<body>...</body>标签旁边
can anybody help/advice that is there any way to parse HTML tags appear in side the <body>...</body> tags
推荐答案
I suppose you want to parse a HTML document using PHP. I suggest you read about the http://www.php.net/manual/en/book.dom.php
以下是 PHP Pro
<?php
$html = '
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" dir="ltr">
<head>
<title>PHPRO.ORG</title>
</head>
<body>
<h2>Forecast for Saturday</h2>
<!-- Issued at 0828 UTC Friday 23 May 2008 -->
<table border="0" summary="Capital Cities Precis Forecast">
<tbody>
<tr>
<td><a href="/products/IDN10064.shtml" title="Link to Sydney forecast">Sydney</a></td>
<td title="Maximum temperature in degrees Celsius" class="max alignright">19°</td>
<td>Fine. Mostly sunny.</td>
</tr>
<tr>
<td><a href="/products/IDV10450.shtml" title="Link to Melbourne forecast">Melbourne</a></td>
<td title="Maximum temperature in degrees Celsius" class="max alignright">16°</td>
<td>Fog then fine.</td>
</tr>
<tr>
<td><a href="/products/IDQ10095.shtml" title="Link to Brisbane forecast">Brisbane</a></td>
<td title="Maximum temperature in degrees Celsius" class="max alignright">24°</td>
<td>Mostly fine</td>
</tr>
<tr>
<td><a href="/products/IDW12300.shtml" title="Link to Perth forecast">Perth</a></td>
<td title="Maximum temperature in degrees Celsius" class="max alignright">21°</td>
<td>Few showers, increasing later.</td>
</tr>
<tr>
<td><a href="/products/IDS10034.shtml" title="Link to Adelaide forecast">Adelaide</a></td>
<td title="Maximum temperature in degrees Celsius" class="max alignright">20°</td>
<td>Fine. Mostly sunny.</td>
</tr>
<tr>
<td><a href="/products/IDT65061.shtml" title="Link to Hobart forecast">Hobart</a></td>
<td title="Maximum temperature in degrees Celsius" class="max alignright">13°</td>
<td>Mainly fine.</td>
</tr>
<tr>
<td><a href="/products/IDN10035.shtml" title="Link to Canberra forecast">Canberra</a></td>
<td title="Maximum temperature in degrees Celsius" class="max alignright">15°</td>
<td>Fine, mostly sunny.</td>
</tr>
<tr>
<td><a href="/products/IDD10150.shtml" title="Link to Darwin forecast">Darwin</a></td>
<td title="Maximum temperature in degrees Celsius" class="max alignright">32°</td>
<td>Fine and sunny.</td>
</tr>
</tbody>
</table>
</body>
</html>
';
/*** a new dom object ***/
$dom = new domDocument;
/*** load the html into the object ***/
$dom->loadHTML($html);
/*** discard white space ***/
$dom->preserveWhiteSpace = false;
/*** the table by its tag name ***/
$tables = $dom->getElementsByTagName('table');
/*** get all rows from the table ***/
$rows = $tables->item(0)->getElementsByTagName('tr');
/*** loop over the table rows ***/
foreach ($rows as $row)
{
/*** get each column by tag name ***/
$cols = $row->getElementsByTagName('td');
/*** echo the values ***/
echo $cols->item(0)->nodeValue.'<br />';
echo $cols->item(1)->nodeValue.'<br />';
echo $cols->item(2)->nodeValue;
echo '<hr />';
}
?>
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