PHP | XMLWriter setIndent() Function

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:

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<?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();
?>

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Output:

<?xml version="1.0" encoding="UTF-8"?>
<div>
 <h1>Indented Text</h1>
</div>

Example 2:

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<?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();
?>

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Output:

<?xml version="1.0" encoding="UTF-8"?>
<div>
******<p>
************<h1>GeeksforGeeks</h1>
******</p>
</div>

Reference: https://www.php.net/manual/en/function.xmlwriter-set-indent.php




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