PHP | XMLWriter startAttributeNs() Function
Last Updated :
07 Mar, 2024
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
<?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();
?>
<?xml version="1.0" encoding="UTF-8"?>
<div pre:attrib="value" xmlns:pre="value"/>
Example 2:
php
<?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();
?>
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