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php查找任何页面上的所有链接的方法

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Release: 2016-06-06 20:26:09
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php查找页面上的所有链接该怎么实现?使用DOM就可以轻松从任何页面上抓取链接,下面有个不错的示例,感兴趣的朋友可以参考下

使用DOM,你可以轻松从任何页面上抓取链接,,代码示例如下:

复制代码 代码如下:


$html = file_get_contents('http://www.example.com');
$dom = new DOMDocument();
@$dom->loadHTML($html);
// grab all the on the page
$xpath = new DOMXPath($dom);
$hrefs = $xpath->evaluate("/html/body//a");
for ($i = 0; $i length; $i++) {
$href = $hrefs->item($i);
$url = $href->getAttribute('href');
echo $url.'
';
}

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