PHP | XMLReader getAttributeNo() Function

The XMLReader::getAttributeNo() function is an inbuilt function in PHP which is used to get the value of an attribute based on its position or an empty string if attribute does not exist or not positioned on an element node.

Syntax:

string XMLReader::getAttributeNo( int $index )

Parameters: This function accepts a single parameter $index which holds the index of the attribute value to fetch.

Return Value: This function returns value of the attribute on success or an empty string.

Below examples illustrate the XMLReader::getAttributeNo() function in PHP:



Example 1:

  • data.xml
    filter_none

    edit
    close

    play_arrow

    link
    brightness_4
    code

    <?xml version="1.0" encoding="utf-8"?>
    <body>
        <h1> Hello </h1>
    </body>

    chevron_right

    
    

  • index.php
    filter_none

    edit
    close

    play_arrow

    link
    brightness_4
    code

    <?php
      
    // Create a new XMLReader instance
    $XMLReader = new XMLReader();
      
    // Load the XML file
    $XMLReader->open('data.xml');
      
    // Iterate through the XML
    while ($XMLReader->read()) {
        if ($XMLReader->nodeType == XMLREADER::ELEMENT) {
      
            // Get the value of first attribute
            $value = $XMLReader->getAttributeNo(0);
      
            // Output the value to browser
            echo $value . "<br>";
        }
    }
    ?>

    chevron_right

    
    

  • Output:
    // Empty string because no attributes are there in XML

Example 2:

  • data.xml
    filter_none

    edit
    close

    play_arrow

    link
    brightness_4
    code

    <?xml version="1.0" encoding="utf-8"?>
    <body>
        <h1 id="geeksforgeeks"> Hello </h1>
        <h2 id="my_id"> World </h2>
    </body>

    chevron_right

    
    

  • index.php
    filter_none

    edit
    close

    play_arrow

    link
    brightness_4
    code

    <?php
      
    // Create a new XMLReader instance
    $XMLReader = new XMLReader();
      
    // Load the XML file
    $XMLReader->open('data.xml');
      
    // Iterate through the XML
    while ($XMLReader->read()) {
        if ($XMLReader->nodeType == XMLREADER::ELEMENT) {
      
            // Get the value of first attribute
            $value = $XMLReader->getAttributeNo(0);
      
            // Output the value to browser
            echo $value . "<br>";
        }
    }
    ?>

    chevron_right

    
    

  • Output:
    geeksforgeeks
    my_id

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