PHP | XMLReader moveToAttributeNs() Function

The XMLReader::moveToAttributeNs() function is an inbuilt function in PHP which is used to move cursor on the named attribute in specified namespace. This method is useful when we want to get the attribute value of a specific attribute in a specific namespace and ignore all other namespaces.

Syntax:

bool XMLReader::moveToAttributeNs( string $localName,
                          string $namespaceURI )

Parameters: This function accept two parameters as mentioned above and described below:

  • $localName: It specifies the local name of attribute.
  • $namespaceURI: It specifies the namespace URI.

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

Below given programs illustrate the XMLReader::moveToAttributeNs() function in PHP:



Program 1:
Filename: data.xml

filter_none

edit
close

play_arrow

link
brightness_4
code

<?xml version="1.0" encoding="utf-8"?>
<div xmlns:z="my_namespace">
    <z:h1 z:attrib="value"> Foo Bar </z:h1>
</div>

chevron_right


Filename: index.php

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php
  
// Create a new XMLReader instance
$XMLReader = new XMLReader();
  
// Open the XML file
$XMLReader->open('data.xml');
  
// Iterate through the XML nodes
// to reach the h1 node
$XMLReader->read();
$XMLReader->read();
$XMLReader->read();
  
// Move to attribute with name attrib
// with the namespace "my_namespace"
$XMLReader->moveToAttributeNs("attrib",
                    "wrong_namespace");
  
// Output the value to browser
echo $XMLReader->value;
?>

chevron_right


Output:

// Empty string because there is no namespace called "wrong_namespace"

Program 2:
Filename: data.xml

filter_none

edit
close

play_arrow

link
brightness_4
code

<?xml version="1.0" encoding="utf-8"?>
<div xmlns:z="my_namespace">
    <z:h1 z:attrib="value"> Foo Bar </z:h1>
</div>

chevron_right


Filename: index.php

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php
  
// Create a new XMLReader instance
$XMLReader = new XMLReader();
  
// Open the XML file
$XMLReader->open('data.xml');
  
// Iterate through the XML nodes
// to reach the z:h1 node
$XMLReader->read();
$XMLReader->read();
$XMLReader->read();
  
// Move to attribute with name attrib
// with the namespace "my_namespace"
$XMLReader->moveToAttributeNs("attrib",
                   "my_namespace");
  
// Output the value to browser
echo $XMLReader->value;
?>

chevron_right


Output:

value

Reference: https://www.php.net/manual/en/xmlreader.movetoattributens.php




My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.


Article Tags :
Practice Tags :


Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.