PHP | XMLWriter openUri() Function

The XMLWriter::openUri() function is an inbuilt function in PHP which is used to create a new XMLWriter using source URI for output. In simple words, this function decides how to output the XML to user, it can be through a browser or directly to a file.

Syntax:

bool XMLWriter::openUri( string $uri )

Parameters:This function accepts a single parameter $uri which holds the uri for output.

Return Value: This function returns TRUE on success or FALSE on failure.

Below examples illustrate the XMLWriter::openUri() function in PHP:

Example 1:

<?php

// Create a new XMLWriter instance
$writer = new XMLWriter();

// Create the output stream as PHP
$writer->openURI('php://output');

// Start the document
$writer->startDocument('1.0', 'UTF-8');

// Start a element
$writer->startElement('i');

// Add value to the element
$writer->text('GeeksforGeeks');

// End the element
$writer->endElement();

// End the document
$writer->endDocument();
?>

Output:

GeeksforGeeks

Example 2:

<?php

// Create a new XMLWriter instance
$writer = new XMLWriter();

// Create the output stream to a file
$writer->openURI('new.xml');

// Start the document
$writer->startDocument('1.0', 'UTF-8');

// Start a element
$writer->startElement('div');

// Add value to the element
$writer->text('Hello World');

// End the element
$writer->endElement();

// End the document
$writer->endDocument();
?>

Output: This will create a new file called new.xml in the same folder with the following content