The XMLReader::expand() function is an inbuilt function in PHP which is used to copy the current node and returns the appropriate DOM object.
Syntax:
DOMNode XMLReader::expand( DOMNode $basenode )
Parameters: This function accepts a single parameter $basenode which holds a DOMNode defining the target DOMDocument for the created DOM object.
Return Value: This function returns DOMNode on success or FALSE on failure.
Below examples illustrate the XMLReader::expand() function in PHP:
Example 1:
- data.xml
<?xmlversion="1.0"encoding="utf-8"?><root><div> This is a div </div></root> - index.php
<?php// Create a new XMLReader instance$XMLReader=newXMLReader();// Open the XML file$XMLReader->open('data.xml');// Move to the first node$XMLReader->read();// Read it as a element$element=$XMLReader->expand();// Print the node value to the browserecho$element->nodeValue;?> - Output:
This is a div
Example 2:
- data.xml
<?xmlversion="1.0"encoding="utf-8"?><body><h1style="color:green; font-size:100px;">neveropen</h1></body> - index.php
<?php// Create a new XMLReader instance$XMLReader=newXMLReader();// Open the XML file$XMLReader->open('data.xml');// Move to the first node$XMLReader->read();// Read it as a element$element=$XMLReader->expand();// Create a new DOMDocument instance$DOMDocument=newDOMDocument();// Append the child to the element$DOMDocument->appendChild($element);// Render the XML in browserecho$DOMDocument->saveXML(); - Output:
Reference: https://www.php.net/manual/en/xmlreader.expand.php
