Skip to content
Related Articles

Related Articles

PHP | XMLWriter startAttributeNs() Function
  • Last Updated : 18 Mar, 2020

The XMLWriter::startAttributeNs() function is an inbuilt function in PHP which is used to start namespaced attribute. This attribute can be later closed with XMLWriter::endAttribute() function. Usually styling web pages doesn’t works in a namespace attribute.

Syntax:

bool XMLWriter::startAttributeNs( string $prefix, 
string $name, string $uri )

Parameters: This function accepts three parameters as mentioned above and described below:

  • $prefix: It specifies the prefix for the namespace.
  • $name: It specifies the name for the namespace.
  • $uri: It specifies the value for the namespace.

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

Below examples illustrate the XMLWriter::startAttributeNs() 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 a element
$writer->startElement('div');
   
// Start the namespaced attribute
$writer->startAttributeNs('pre', 'attrib', 'value');
   
// Add value to the attribute
$writer->text('value');
   
// End the attribute
$writer->endAttribute();
   
// End the element
$writer->endElement();
   
// End the document
$writer->endDocument();
?>

Output:

<?xml version="1.0" encoding="UTF-8"?>
<div pre:attrib="value" xmlns:pre="value"/>

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 a element
$writer->startElement('div');
   
// Start the namespaced attribute with style attribute
// This will not work because it is namespaced
$writer->startAttributeNs('style', 'attrib', 'value');
   
// Add value to the attribute
$writer->text('color:blue');
   
// End the attribute
$writer->endAttribute();
  
// Add value to the element
$writer->text('Namespaced GeeksforGeeks');
   
// End the element
$writer->endElement();
  
// Start a h1 element
$writer->startElement('h1');
   
// Start the style attribute
$writer->startAttribute('style');
   
// Add value to the attribute
$writer->text('color:green');
   
// End the attribute
$writer->endAttribute();
   
// Add value to the element
$writer->text('Normal GeeksforGeeks');
   
// End the element
$writer->endElement();
   
// End the document
$writer->endDocument();
?>

Output:

Reference: https://www.php.net/manual/en/function.xmlwriter-start-attribute-ns.php

My Personal Notes arrow_drop_up
Recommended Articles
Page :