doulianglou0898 2013-02-03 21:51
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如何使用XPath获取这些值

HTML

<table id='dg' border='0'  class="Table">
  <tr>
    <td class='text'>id.</td>
    <td class='text'>file</td>
    <td class='text'>alt</td>
  </tr>
  <tr>
    <td class='text'><input name='somename[]' type='hidden' value='1234'>
      1</td>
    <td class='text'><a href='#' onClick="javascript:openPopWindow('../../somefile.jpg');" ><img src='cms_thumb.php?imgsrc=somefile2.jpg' border='0' ></a></td>
    <td class='text'><input type='text' name='title[]' value='Value 1'></td>
  </tr>
  <tr>
    <td class='text'><input name='somename[]2' type='hidden' value='2345'>
      2</td>
    <td class='text'><a href='#' onClick="javascript:openPopWindow('../../somefile2.jpg');" ><img src='thumb.php?imgsrc=somefile2.jpg' border='0' ></a></td>
    <td class='text'><input type='text' name='title[]' value='Value 2'></td>
  </tr>
</table>

OBJECTIVE

Need to get img src filename and get value of the input field which have name=title[]

WHAT I HAVE SO FAR

$dom = new DOMDocument;
$dom->loadHTML($html);
$xpath = new DOMXpath($dom);

foreach ($dom->getElementsByTagName('tr') as $node) { 
    $img = $xpath->query('//img')->item(0); 
    $img = str_replace("\'","",$img->getAttribute('src'));
    $img = str_replace("cms_thumb.php?imgsrc=","",$img);
    echo $img.'<br>';
}

$img contains just first image and not other

  • 写回答

2条回答 默认 最新

  • dongshi4078 2013-02-03 22:19
    关注

    Try:

    $html = <<<HTML
<table id='dg' border='0'  class="Table">
  <tr>
    <td class='text'>id.</td>
    <td class='text'>file</td>
    <td class='text'>alt</td>
  </tr>
  <tr>
    <td class='text'><input name='somename[]' type='hidden' value='1234'>
      1</td>
    <td class='text'><a href='#' onClick="javascript:openPopWindow('../../somefile.jpg');" ><img src='cms_thumb.php?imgsrc=somefile2.jpg' border='0' ></a></td>
    <td class='text'><input type='text' name='title[]' value='Value 1'></td>
  </tr>
  <tr>
    <td class='text'><input name='somename[]2' type='hidden' value='2345'>
      2</td>
    <td class='text'><a href='#' onClick="javascript:openPopWindow('../../somefile2.jpg');" ><img src='thumb.php?imgsrc=somefile2.jpg' border='0' ></a></td>
    <td class='text'><input type='text' name='title[]' value='Value 2'></td>
  </tr>
</table>
HTML;


$doc = new DOMDocument();
$doc->loadHTML($html);


foreach($doc->getElementsByTagName("td") as $td){
    foreach($td->getElementsByTagName("img") as $img){
        $arr_img[] = array(
            "img" => $img->getAttribute("src"),
        );
    }
    foreach($td->getElementsByTagName("input") as $name){
        if ($name->getAttribute("name")==="title[]"){
            $arr_value[] = array(
                "value" => $name->getAttribute("value")
            );
        }
    }
}

var_dump($arr_img); // In this array will be img src's
var_dump($arr_value); // In this array will be values of input elements which name equal to title[]

    var_dump Outputs will be =>

    array(2) {
  [0]=>
  array(1) {
    ["img"]=>
    string(34) "cms_thumb.php?imgsrc=somefile2.jpg"
  }
  [1]=>
  array(1) {
    ["img"]=>
    string(30) "thumb.php?imgsrc=somefile2.jpg"
  }
}

array(2) {
  [0]=>
  array(1) {
    ["value"]=>
    string(7) "Value 1"
  }
  [1]=>
  array(1) {
    ["value"]=>
    string(7) "Value 2"
  }
}
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
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