PHP | XMLWriter endDtd() Function

The XMLWriter::endDtd() function is an inbuilt function in PHP which is used to end current DTD which is started using XMLWriter::startDtd() function. DTD stands for Document Type Definition which defines the structure and the legal elements and attributes of an XML document. DTD aren’t visible in a webpage because they act like comments.

Syntax:

bool XMLWriter::endDtd( void )

Parameters: This function doesn’t accept any parameter.



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

Below examples illustrate the XMLWriter::endDtd() 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');
   
// Start the Dtd
$writer->startDtd('my_dtd');
   
// End the Dtd 
$writer->endDtd();
      
// 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');
   
// Start the Dtd
$writer->startDtd('my_dtd_which_is_not_visible');
   
// End the Dtd 
$writer->endDtd();
  
// Write a text to document
$writer->text('This is XMLWriter.');
  
// End the document
$writer->endDocument();
?>

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Output:

This is XMLWriter.

Reference: https://www.php.net/manual/en/function.xmlwriter-end-dtd.php




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