[英]Choose multiple class name and get childnode inside that class with PHP DOMXpath
<div id="conti">
<div class="no_matter"></div>
<div class="row-0">
<b></b>
<span>
<i>"child node that i want to get"</i>
</span>
</div>
<div class="row-1">
<b></b>
<span>
<i>"child node that i want to get"</i>
</span>
</div>
<div class="row-0">
<b></b>
<span>
<i>"child node that i want to get"</i>
</span>
</div>
<div class="row-1">
<b></b>
<span>
<i>"child node that i want to get"</i>
</span>
</div>
...
...
class row-0 and row-1 repeats itself
...
...
</div>
這是我要解析和獲取內容的HTML。 我希望text node inside <i> tag
。 我正在使用DOMDocument
和DOMXpath
$dom = new DOMDocument();
$dom->loadHTMLFile('http://www.meal.org/anter.php');
$dom->preserveWhiteSpace = true;
$xpath = new DOMXPath($dom);
$row = $xpath->query('//*[@class="row-0" ]'); //my problem begins there. I want both 'row-0' and 'row-1'. How i am gonna choose multiple class?
//and than how i am gonna get `<i>` tag inside every `row-0` and `row-1` class and get the text node?
您可以使用以下XPath查詢執行所有操作:
//*[starts-with(@class,"row-")]/span/i/text()
starts-with
檢查第一個字符串是否以第二個字符串開頭並返回true或false。
如果您對這些行中的所有文本節點感興趣,那么b
標記中的文本節點以及可能在這些行中的任何其他標記也會感興趣,然后使用雙斜杠:
//*[starts-with(@class,"row-")]//text()
$iTags = $xpath->query('//div[@class="row-0" or @class="row-1"]/span/i');
foreach ($iTags as $iTag) {
var_dump(trim($iTag->nodeValue));
}
我不熟悉XPath,所以我使用DOMDocument()
循環遍歷每個<div>
元素。 檢查它是否具有值為row-0或row-1的屬性類。 如果是,則獲取每個元素<i>
並轉儲nodeValue。
foreach($dom->getElementsByTagName('div') as $div){
if($div->getAttribute('class') == 'row-0' OR $div->getAttribute('class') == 'row-1'){
foreach($div->getElementsByTagName('i') as $i){
var_dump($i->nodeValue);
}
}
}
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