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PHP
In PHP, you can parse and process HTML/XML documents using various libraries and functions.
Using SimpleXML
What is SimpleXML?
SimpleXML is a built-in PHP extension that provides an easy and convenient way to parse XML documents and convert them into objects.
How to Use SimpleXML
// Load the XML content from a file or string
$xml = simplexml_load_string($xmlContent);
// Access elements and attributes in the XML
echo $xml->elementName;
echo $xml->elementName['attributeName'];
Example
$xmlContent = '<bookstore>
<book>
<title>PHP Basics</title>
<author>John Doe</author>
<price>19.99</price>
</book>
</bookstore>';
// Load the XML content
$xml = simplexml_load_string($xmlContent);
// Access elements and attributes
echo "Title: " . $xml->book->title . "\n";
echo "Author: " . $xml->book->author . "\n";
echo "Price: $" . $xml->book->price . "\n";
Using DOMDocument
What is DOMDocument?
DOMDocument is another built-in PHP extension that provides a more powerful way to parse and manipulate both HTML and XML documents.
How to Use DOMDocument
// Create a new DOMDocument object
$dom = new DOMDocument();
// Load the HTML/XML content from a file or string
$dom->loadHTML($htmlContent);
// Access elements and attributes using DOM methods
$elements = $dom->getElementsByTagName('elementName');
foreach ($elements as $element) {
// Process each element
}
Example
$htmlContent = '<html>
<body>
<h1>Welcome to PHP</h1>
<p>This is a paragraph.</p>
</body>
</html>';
// Create a new DOMDocument object
$dom = new DOMDocument();
// Load the HTML content
$dom->loadHTML($htmlContent);
// Access elements and attributes
$heading = $dom->getElementsByTagName('h1')->item(0)->nodeValue;
$paragraph = $dom->getElementsByTagName('p')->item(0)->nodeValue;
echo "Heading: " . $heading . "\n";
echo "Paragraph: " . $paragraph . "\n";
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