Are there any specific standards or guidelines for using XPath in PHP without needing a DTD?

When using XPath in PHP without needing a DTD, it is important to ensure that your XPath expressions are well-formed and correctly target the desired elements in the XML document. This can be achieved by following XPath syntax rules and using XPath functions appropriately. Additionally, it is recommended to use a reliable XML parsing library in PHP, such as SimpleXMLElement, to handle XML data effectively. 

// Load the XML data into a SimpleXMLElement object
$xml = new SimpleXMLElement($xmlString);

// Define the XPath expression to select specific elements
$xpath = $xml->xpath('//book[@category="fiction"]');

// Loop through the selected elements and process them
foreach ($xpath as $book) {
    // Do something with the selected book element
}

Keywords

XPath PHP DTD standards guidelines

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