dongtang5776 2018-09-26 15:31
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PHP使用DOMDocument和/或Regex从HTML中提取URL

I'm trying to get the value for the key poster in the html, which is https:\/\/example.com\/avt\/test.jpg

html

    <html><body> 
    <script>
         (function(window, sabaPlayer) {
          var options = JSON.parse('{"poster":"https:\/\/example.com\/avt\/test.jpg"}')
 })
    </script>
    </body></html>

Can i do this with DOMXPath? The page has way more html but this is the specifc part i want.

$dom = new DOMDocument();

$dom->loadHTML($html);
$xpath = new DOMXPath($dom);
$result = $xpath->query("//script");

foreach($result as $node) {


}

How do i do this?

The result i want is the string https:\/\/example.com\/avt\/test.jpg

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1条回答 默认 最新

  • dongzhunqiu4841 2018-09-26 15:57
    关注

    I think you can use regex to fetch this value which will be easier.

    $txt = <<<TXT
<html><body> 
  <script>
     (function(window, sabaPlayer) {
      var options = JSON.parse('{"poster":"https:\/\/example.com\/avt\/test.jpg"}')
     })
</script>
</body></html>
TXT;

$matches = [];
preg_match('/JSON.parse\(\'(.*)\'\)/iu', $txt, $matches);

$parsed = json_decode($matches[1]);

    Output will be an stdClass with property poster

    stdClass Object
(
    [poster] => https://example.com/avt/test.jpg
)

    Here is how to access the URL $parsed->poster

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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