$xmlString = '<root><name>John Doe</name><age>25</age></root>'; $xml = simplexml_load_string($xmlString); $name = $xml->name; $age = $xml->age; echo "Name: $name, Age: $age";
$htmlString = '<html><body><h1>Hello World</h1><p>Welcome to my website</p><p><span>立即学习</span><a href="https://example.com">PHP免费学习笔记</a></p></body></html>';
$dom = new DOMDocument();
$dom->loadHTML($htmlString);
$headings = $dom->getElementsByTagName('h1');
foreach ($headings as $heading) {
echo $heading->nodeValue;
}
$xmlString = '<root><book title="PHP in Action" price="29.99" /></root>'; $xml = simplexml_load_string($xmlString); $title = $xml->book['title']; $price = $xml->book['price']; echo "Title: $title, Price: $price";
$htmlString = '<html><body><h1>Heading 1</h1><p>Paragraph 1</p><h2>Heading 2</h2><p>Paragraph 2</p></body></html>';
$dom = new DOMDocument();
$dom->loadHTML($htmlString);
$elements = $dom->getElementsByTagName('*');
foreach ($elements as $element) {
echo $element->nodeName . ': ' . $element->nodeValue . '<br>';
}
$htmlString = '<html><body><div><h1>Heading 1</h1><p>Paragraph 1</p></div><div><h2>Heading 2</h2><p>Paragraph 2</p></div></body></html>';
$dom = new DOMDocument();
$dom->loadHTML($htmlString);
$xpath = new DOMXPath($dom);
$paragraphs = $xpath->query('//p');
foreach ($paragraphs as $paragraph) {
echo $paragraph->nodeValue . '<br>';
}
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