Pre-requisite: Read XML Basics
The SimpleXMLElement::attributes() function is an inbuilt function in PHP which is used to retrieve the attributes and its value from an XML tag in a SimpleXML object.
Syntax:
SimpleXMLElement SimpleXMLElement::attributes( $namespace, $is_prefix )
Parameter: This function accepts two parameters as mentioned above and described below:
- $namespace: It is optional parameter. It specifies the namespace for retrieved Attribute.
- $is_prefix: It is boolean parameter. It is True if $namespace is a prefix and False if $namespace is URI. Its default value is False.
Return Value: It returns a SimpleXMLElement object which can be iterated over attributes of a tag of the SimpleXMLElement object. It returns null if the SimpleXMLElement Object is already an attribute not a tag.
Note: This function is available on PHP 5.0.1 and newer version.
Below programs illustrate the SimpleXMLElement::attributes() function in PHP:
Program 1:
php
<?php// Loading XML document to $user$user = <<<XML<user> <username> Geeks123 </username> <name> neveropen </name> <phone> +91-XXXXXXXXXX </phone> <address font-color="blue" font="awesome-fonts" font-size="24px"> Noida, UP, India </address></user>XML;// Loading string as simple xml object$xml = simplexml_load_string($user);// Print children attribute with its valueforeach($xml->address[0]->attributes() as $key => $value){ echo $key . " => " . $value . "</br>";}?> |
Output:
font-color => blue font => awesome-fonts font-size => 24px
Program 2:
php
<?php// Loading XML document to $user$user = <<<XML<user> <username font-color="green" font="awesome-fonts" font-size="72px"> Geeks123 </username> <name font-color="blue" font="awesome-fonts" font-size="36px"> neveropen </name> <phone font-color="blue" type="number" font="awesome-fonts" font-size="24px"> +91-XXXXXXXXXX </phone> <address font-color="blue" font="awesome-fonts" font-size="24px"> Noida, UP, India </address></user>XML;// Loading string as simple xml object$xml = simplexml_load_string($user);// Print children attributeforeach($xml->children() as $child) { echo "Child name: " . $child->getName() . " =>" . $child . "<br>"; foreach($child->attributes() as $key => $value) echo " parameter: " . $key . " => " . $value . "</br>";}?> |
Output:
Child name: username => Geeks123
parameter: font-color => green
parameter: font => awesome-fonts
parameter: font-size => 72px
Child name: name => neveropen
parameter: font-color => blue
parameter: font => awesome-fonts
parameter: font-size => 36px
Child name: phone => +91-XXXXXXXXXX
parameter: font-color => blue
parameter: type => number
parameter: font => awesome-fonts
parameter: font-size => 24px
Child name: address => Noida, UP, India
parameter: font-color => blue
parameter: font => awesome-fonts
parameter: font-size => 24px
Reference: https://www.php.net/manual/en/simplexmlelement.attributes.php
