DiDOM is a simple and fast HTML parser for PHP. It does not natively support XPath queries as it is not a full-fledged DOM parser like PHP's DOMDocument. Instead, DiDOM provides its own methods for traversing and manipulating HTML documents.
However, if you want to use XPath queries, you'd need to integrate DiDOM with another library that supports XPath, or use PHP's built-in DOMDocument alongside DiDOM. Below is an example of how you can convert a DiDOM document to a DOMDocument and then perform XPath queries:
use DiDom\Document;
// Load the HTML into DiDOM
$html = '<html><body><div id="content">Hello World</div></body></html>';
$document = new Document($html);
// Convert DiDOM document to DOMDocument
$domDocument = $document->toDomDocument();
// Create an instance of DOMXPath
$xpath = new DOMXPath($domDocument);
// Perform an XPath query
$query = '//*[@id="content"]';
$entries = $xpath->query($query);
foreach ($entries as $entry) {
echo $entry->nodeValue; // Outputs: Hello World
}
This example shows how you can use PHP's native DOMDocument and DOMXPath classes to perform XPath queries on a document that you've initially loaded with DiDOM.
Here's the process broken down:
1. Load the HTML content into DiDOM's Document class.
2. Convert the DiDOM Document into a DOMDocument using the toDomDocument() method.
3. Create an instance of DOMXPath with the DOMDocument object.
4. Define your XPath query and use the query() method to execute it.
5. Iterate over the results and output or manipulate them as needed.
Keep in mind that this approach leverages PHP's built-in DOM extension, which means you need to have the extension enabled in your PHP environment. If you wish to stick purely to DiDOM, you'll need to use its native methods for selecting elements, which are based on CSS selectors rather than XPath.
