php 如何从 <div>value</div> 中获取价值?
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时间:2020-08-26 04:35:05 来源:igfitidea点击:
How to get value from <div>value</div>?
提问by Aryan G
I need to get value from
我需要从中获取价值
<div id = "result">Roll No 103 Pass</div>
and out put should be : Roll No 103 Pass
并且输出应该是:Roll No 103 Pass
I used this code :
我使用了这个代码:
$markup = file_get_contents('www.results.com');
$doc = new DomDocument();
@$file = $doc->loadHTML($markup);
$spans = $doc->getElementsByTagName('div');
foreach($spans AS $span)
{
$class = $span -> getElementsById('id');
if($class=="result") {
echo $span -> nodeValue;
}
}
but it just return blank screen
但它只是返回空白屏幕
回答by Francis Avila
$doc = new DomDocument();
$doc->loadHTMLFile('http://www.results.com');
$thediv = $doc->getElementById('result');
echo $thediv->textContent;
回答by Felix Kling
Two remarks:
两点说明:
- IDs have to be unique, so there is little sense in looping over elements and search for an element with a specific ID in them. Just get the element directly.
- You can get the inner text with the
textContent
[docs]property.
- ID 必须是唯一的,因此循环遍历元素并搜索其中具有特定 ID 的元素是没有意义的。直接获取元素即可。
- 您可以使用
textContent
[docs]属性获取内部文本。
Example:
例子:
$div = $doc->getElementById('result');
if($div) {
echo $div->textContent;
}