HTML：<head> <link rel="preload" href="/_next/list.js" as="script"> <!-- ... other link elemens --> <style data-styled="" data-styled-version="4.2.0"></style></head>任务：从 head 中提取所有链接和样式标签，并使用主机路径更新 href 属性。创建新的 html 字符串元素（一段 html），我们可以在我们的主 html 模板中输出它。PHP：$dom = new DOMDocument();$dom->loadHTML($stringBody);$xpath = new DOMXPath($dom);$headItems = $xpath->query("//head/link[@rel='preload' or @rel='stylesheet'] | //head/style");// now I want to create html string with updated attributes, but I'm lost here..$head = new DOMDocument();foreach ($headItems as $headNode) { $headNode->setAttribute('href', $host . $headNode->getAttribute('href'));}$links = $head->saveHTML($headNode);echo $links; // echo html link tags
1 回答
拉丁的传说
TA贡献1789条经验 获得超8个赞
试试这个：
<?php
$host = 'example.com';
$stringBody = '<head>
<link rel="preload" href="/_next/list.js" as="script">
<!-- ... other link elemens -->
<style data-styled="" data-styled-version="4.2.0"></style>
</head>';
$dom = new DOMDocument();
$dom->loadHTML($stringBody);
$xpath = new DOMXPath($dom);
$headItems = $xpath->query("//head/link[@rel='preload' or @rel='stylesheet'] | //head/style");
$links = [];
foreach ($headItems as $headNode) {
if ($headNode->hasAttribute('href')) {
$headNode->setAttribute('href', $host . $headNode->getAttribute('href'));
}
$links[] = $headNode->ownerDocument->saveHTML($headNode);
}
print_r($links);
输出
Array
(
[0] => <link rel="preload" href="example.com/_next/list.js" as="script">
[1] => <style data-styled="" data-styled-version="4.2.0"></style>
)
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