PHP | XMLWriter endDtd() Function

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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:

<?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(); 
?> 

Output: Press Ctrl+U to see the XML

Example 2:

<?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(); 
?> 