dongtiao2105 2010-12-23 00:16
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PHP DOMDocument:如何选择特定标记下的所有链接

I'm just getting started with using php DOMDocument and am having a little trouble. How would I select all link nodes under a specific node lets say

in jquery i could simply do.. $('h5 > a') and this would give me all the links under h5.

how would i do this in php using DOMDocument methods? I tried using phpquery but for some reason it can't read the html page i'm trying to parse.

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  • dsfsfdsf4544 2010-12-23 00:24
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    As far as I know, jQuery rewrites the selector queries to XPath. Any node jQuery can select, XPath also can.

    h5 > a means select any a node for which the direct parent node is h5. This can easily be translated to a XPath query: //h5/a.

    So, using DOMDocument:

    $dom = new DOMDocument;
    $dom->loadHTML($html);
    
    $xpath = new DOMXPath($dom);
    $nodes = $xpath->query('//h5/a');
    
    foreach ($nodes as $node) {
       // do stuff
    }
    
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