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   // Create a new XMLWriter instance $writer = new XMLWriter();   // Create the output stream as PHP   // 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   // Create a new XMLWriter instance $writer = new XMLWriter();   // Create the output stream as PHP   // 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('neveropen');   // 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>neveropen</h1> ******</p> </div>
Reference: https://www.php.net/manual/en/function.xmlwriter-set-indent.php
