PHP | XMLWriter setIndent() Function

Last Updated : 07 Mar, 2024
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The XMLWriter::setIndent() function is an inbuilt function in PHP which is used to toggle indentation on/off in the XML document which is off by default. Syntax: 
bool XMLWriter::setIndent( bool $indent )
Parameters: This function accepts a single parameter $indent which holds a boolean stating TRUE for enabling the indentation or FALSE for disabling the indentation. Return Value: This function returns TRUE on success or FALSE on failure. Below examples illustrate the XMLWriter::setIndent() function in PHP: Example 1: php 
<?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');

// Enable the indents
$writer->setIndent(true);

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

// Start a element
$writer->startElement('h1');

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

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

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

// End the document
$writer->endDocument();
?>
Output: 
<?xml version="1.0" encoding="UTF-8"?>
<div>
 <h1>Indented Text</h1>
</div>
Example 2: php 
<?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');

// Enable the indents
$writer->setIndent(true);

// Set the indent string
$writer->setIndentString('******');

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

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

// Start a element
$writer->startElement('h1');

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

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

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

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

// End the document
$writer->endDocument();
?>
Output: 
<?xml version="1.0" encoding="UTF-8"?>
<div>
******<p>
************<h1>GeeksforGeeks</h1>
******</p>
</div>

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