如何使用简单 HTML DOM 解析器在 <a> 标签中获取 url？

Question

<ul id="PrList" class="v2">
    <li class="tools">

    </li>
    <li class="firstRow">
        <div class="i">
            <a href="www.google.com" title="Google" class="nC">
                <img src="something">
            </a>
        </div>
    </li>
</ul>

如何在 <div class="i"> 中获取 href 属性？

我试过了-

$html = file_get_html($link);
$urls = [];
foreach($html->find('.i') as $element) {
   $url = $element->find('.nC')->href;
   if (!in_array($url, $urls)) {
       echo $url . "<br/>";
       $urls[] = $url;
   }
}

但是我收到一个错误：-

Notice: Trying to get property of non-object

我试过了：-

$html = file_get_html($link);
$html = $html->find('div.i');
$html -> find('a',0)->href; 
$echo $html;

但是我又收到一个错误:-

Fatal error: Call to a member function find() on array

Answer 1

试试这个循环。

foreach($html->find('div[class=i] a') as $a){
  var_dump($a->attr);
}

Answer 2

你需要像下面那样做:-

$html = file_get_html($link);
$urls = [];
foreach($html->find('.i a') as $element) {
   $url = $element->href;
   if (!in_array($url, $urls)) {
       echo $url . "<br/>";
       $urls[] = $url;
   }
}
echo "<pre/>";print_r($urls);

如何使用简单 HTML DOM 解析器在 <a> 标签中获取 url？

How to get url in <a> tag with Simple HTML DOM Parser?

html

php

dom

domparser