How can DOMXPath be applied to a branch of multiple branches in PHP?

To apply DOMXPath to a branch of multiple branches in PHP, you can first select the parent branch using DOMXPath and then iterate through the child branches to extract the desired information. This can be achieved by using XPath expressions to navigate through the DOM structure and retrieve the necessary data. 

// Load the HTML content into a DOMDocument
$html = file_get_contents('example.html');
$dom = new DOMDocument();
$dom->loadHTML($html);

// Create a DOMXPath object to query the DOMDocument
$xpath = new DOMXPath($dom);

// Select the parent branch
$parentBranch = $xpath->query('//parentBranch');

// Iterate through the child branches and extract information
foreach ($parentBranch as $branch) {
    $childBranches = $xpath->query('.//childBranch', $branch);
    
    foreach ($childBranches as $child) {
        // Extract information from each child branch
        $data = $xpath->query('.//data', $child)->item(0)->nodeValue;
        echo $data . "\n";
    }
}

Keywords

DOMXPath PHP branches multiple query

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