dongyi0114 2016-04-17 11:34
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PHP preg_match_all在选项值中没有禁用选项

Any suggestion how to do the result value option without disabled option with php preg_match_all?

<option value="1" disabled="disabled"> google</option>
<option value="2" selected="selected">- yahoo</option>
<option value="3">- youtube</option>
<option value="4">- facebook</option>
<option value="5" disabled="disabled"> twitter</option>
<option value="6">- tumblr</option>
<option value="7">- bing</option>

how to echo just value without disabled options maybe with preg_match_all?

i have some code but not work,

   $string = array(
   '/<option value=\"(.*)\" selected=\"selected\">-/sU',
   '/<option value=\"(.*)\">-/U',);

$option = curl_exec($ch);
foreach ($string as $key) {
 if (preg_match_all($key, $option, $matches)) {
  $count = count($matches[1]);
    for ($i=0; $i < $count ; $i++) { 
     echo $matches[1][$i]."
";
  }
 }else {
   echo "match NOT found";
 }
}

i want to the result like this,

value = 2,3,4,6,7

thanks for helping,

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2条回答 默认 最新

  • dongxingchang9345 2016-04-17 12:11
    关注

    Using XPath is easy, check the following solution:

    $doc = new DOMDocument();
    $doc->loadHTML('<option value="1" disabled="disabled"> google</option><option value="2" selected="selected">- yahoo</option><option value="3">- youtube</option><option value="4">- facebook</option><option value="5" disabled="disabled"> twitter</option><option value="6">- tumblr</option><option value="7">- bing</option>');
    
    $xpath = new DOMXPath($doc);
    $notDisabledOptions = $xpath->query("//option[not(@disabled)]");
    $numberOfOptions = $notDisabledOptions->length;
    
    for($i = 0; $i < $numberOfOptions; $i++){
          echo $notDisabledOptions->item($i)->attributes->getNamedItem("value")->nodeValue;
    }
    

    For more info on how to use XPath, check this XPath tutorial.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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