PHP | XMLWriter setIndentString() Function

The XMLWriter::setIndentString() function is an inbuilt function in PHP which is used to set the string which will be used to indent each element/attribute of the resulting xml.

Syntax:

bool XMLWriter::setIndentString( string $indentString )

Parameters: This function accepts a single parameter $indentString which holds the string to be used as indent.



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

Below examples illustrate the XMLWriter::setIndentString() 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);
  
// Set the indent string
$writer->setIndentString('--->');
  
// Start a element
$writer->startElement('div');
  
// Start a element
$writer->startElement('div');
  
// Add value to the element
$writer->text('Hello World');
  
// End the element
$writer->endElement();
  
// End the element
$writer->endElement();
  
// End the document
$writer->endDocument();
?>

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Output: Press Ctrl+U to see the XML

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('div');
  
// Start a element
$writer->startElement('div');
  
// Add value to the element
$writer->text('This is a multi-indented text.');
  
// 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:

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




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