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SimpleXMLElement::addAttribute

PHP function Edit on GitHub ✎

(PHP 5 >= 5.1.3, PHP 7, PHP 8)

Adds an attribute to the SimpleXML element

Description

SimpleXMLElement::addAttribute(string $qualifiedName, string $value, string|null $namespace = null): void

Adds an attribute to the SimpleXML element.

Parameters

qualifiedName

The name of the attribute to add.

value

The value of the attribute.

namespace

If specified, the namespace to which the attribute belongs.

Return Values

Void

Examples

Note

Listed examples may include examples/simplexml-data.php, which refers to the XML string found in the first example of the basic usage guide.

Add attributes and children to a SimpleXML element

php
<?php

include 'examples/simplexml-data.php';
 
$sxe = new SimpleXMLElement($xmlstr);
$sxe->addAttribute('type', 'documentary');

$movie = $sxe->addChild('movie');
$movie->addChild('title', 'PHP2: More Parser Stories');
$movie->addChild('plot', 'This is all about the people who make it work.');

$characters = $movie->addChild('characters');
$character  = $characters->addChild('character');
$character->addChild('name', 'Mr. Parser');
$character->addChild('actor', 'John Doe');

$rating = $movie->addChild('rating', '5');
$rating->addAttribute('type', 'stars');
 
echo $sxe->asXML();

?>

The above example will output something similar to:

output
<?xml version="1.0" standalone="yes"?>
<movies type="documentary">
 <movie>
  <title>PHP: Behind the Parser</title>
  <characters>
   <character>
    <name>Ms. Coder</name>
    <actor>Onlivia Actora</actor>
   </character>
   <character>
    <name>Mr. Coder</name>
    <actor>El Act&#xD3;r</actor>
   </character>
  </characters>
  <plot>
   So, this language. It's like, a programming language. Or is it a
   scripting language? All is revealed in this thrilling horror spoof
   of a documentary.
  </plot>
  <great-lines>
   <line>PHP solves all my web problems</line>
  </great-lines>
  <rating type="thumbs">7</rating>
  <rating type="stars">5</rating>
 </movie>
 <movie>
  <title>PHP2: More Parser Stories</title>
  <plot>This is all about the people who make it work.</plot>
  <characters>
   <character>
    <name>Mr. Parser</name>
    <actor>John Doe</actor>
   </character>
  </characters>
  <rating type="stars">5</rating>
 </movie>
</movies>

See Also

Source: reference/simplexml/simplexmlelement/addAttribute.xml · from the official PHP manual (php/doc-en)