獲取嵌套元素 PHP HTML Simple Dom
[英]Getting a nested element PHP HTML Simple Dom
問題描述
我想要來自外部網站的評論項目。 我無法編輯網站。
該網站看起來像這樣，我編輯了很多東西，但這是正文的路徑：
<body>
<div class="js-standby-status tn-relative">
<div class="tn-container serp-mobile-container">
<div class="tn-row tn-row-sm-spacing search-page">
<section class="span-d-9 section-main-content-SERP">
<div id="js-products">
<section class="js-results-wrapper">
<section>
<ul class="product-list main-product-list-wrapper">
<li class="product-list-item product-list-item-first standby-status">
<article>
<div class="sl-search-result mobile-search-result">
<a class="sl-search-result-link" href="$url"></a>
<!-- Link is needed -->
<div class="search-result-body">
<a class="top-item-title_wrapper">
<h2 class="search-result-name">
Dunlop Winter Sport 5
</h2>
<span itemprop="mpn">
5452000470454
</span>
</a>
<div class="tn-row">
<div class="span-d-6">
<div class="product-description">
<ul class="search-result-desc-list">
<li class="search-result-desc-list-item" title="205/55 R16 91H">
205/55 R16 91H
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</article>
</li>
</ul>
</section>
</section>
</div>
</section>
</div>
</div>
</div>
</body>
</html>
我正在使用 PHP HTML Simple Dom 和 PHP 7.3。
我目前正在使用此代碼從網站獲取信息：
$html = file_get_html($url);
if(!empty($html)){
$content_url = $html->find(".product-list-item", 0)->find('.sl-search-result', 0)->find('.sl-search-result-link', 0)->getAttribute('href', 0);
$content_naam = $html->find(".product-list-item", 0)->find('.sl-search-result', 0)->find('.sl-search-result-link')->find('.search-result-body', 0)->find('.top-item-title_wrapper', 0)->find('.search-result-name', 0)->plaintext;
$content_ean = $html->find(".product-list-item", 0)->find('.sl-search-result', 0)->find('.sl-search-result-link')->find('.search-result-body', 0)->find('.top-item-title_wrapper', 0)->find("span[itemprop='mpn")->plaintext;
$content_maat = $html->find(".product-list-item", 0)->find('.sl-search-result', 0)->find('.sl-search-result-link')->find('.search-result-body', 0)->find('.tn-row', 0)->find('span-d-6', 0)->find('.product-description')->find('.search-result-desc-list')->find('.search-result-desc-list-item')->plaintext;
if(!empty($content_url)){
if(!empty($content_naam)){
if(!empty($content_ean)){
if(!empty($content_maat)){
echo $item . ". <a href='" . $content_url . "'>EAN: " . $content_ean . " Product naam: " . $content_naam ."</a><br/>";
}else{
echo "Content maat is empty.";
}
}else{
echo "Content ean is empty";
}
}else{
echo "Content naam is empty";
}
}else{
echo "Content URL is empty";
}
}else{
echo "No HTML found!";
}
}
我在腳本中遇到錯誤，不是在網站上，而是在我的 apache2 服務器的日志中。 見下文：
Uncaught Error: Call to a member function find() on null in /var/www/html/scraper/bandenNL.php:30\nStack trace:\n#0 {main}\n thrown in /var/www/html/scraper/bandenNL.php on line 30
你想要更多信息，只是評論。
1 個解決方案
解決方案1
0 已采納 2020-09-24 19:26:23
如果我對你的理解是正確的，那么沿着這些方向的東西應該讓你足夠接近你正在尋找的東西：
include('simple_html_dom.php');
$htmlDoc = new DOMDocument();
$htmlDoc->loadXML($html);
$xpath = new DOMXpath($htmlDoc);
$link = $xpath->query("//a[@href]/@href");
$name = $xpath->query('//h2[@class="search-result-name"]/text()');
$mpn = $xpath->query('//span[@itemprop="mpn"]/text()');
$title_attr = $xpath->query('//li[@class="search-result-desc-list-item"]/@title');
$title = $xpath->query('//li[@class="search-result-desc-list-item"]/text()');
echo "Link: ". $link[0]->textContent . "<br>";
echo "Name: ". $name[0]->textContent . "<br>";
echo "MPN: ". $mpn[0]->textContent . "<br>";
echo "Title attribure: ". $title_attr[0]->textContent . "<br>";
echo "Title: ". $title[0]->textContent . "<br>";
Output：
Link: my.url
Name: Dunlop Winter Sport 5
MPN: 5452000470454
Title attribure: 205/55 R16 91H
Title: 205/55 R16 91H
PHP Simple HTML DOM解析器將該元素放在當前元素之后
[英]PHP Simple HTML DOM Parser the element just after current element
使用PHP Simple Html Dom獲取不同類型的上一個元素？
[英]Get previous element of a different type with PHP Simple Html Dom?
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