PHP | SimpleXMLIterator key() Function

0 0 1 minute read

The SimpleXMLIterator::key() function is an inbuilt function in PHP which is used to return the key of current element.

Syntax:

mixed SimpleXMLIterator::key( void )

Parameters: This function does not accept any parameters.

Return Value: This function returns the XML tag name of the element SimpleXMLIterator object on success or FALSE on failure.

Below program illustrates the SimpleXMLIterator::key() function in PHP:

Program:

<?php 
  
// Store the xml element to variable 
$xml = <<<XML 
    <organization> 
        <name>zambiatek</name> 
        <address>Noida India</address> 
        <contact> 
            <email>abc@zambiatek.com</email> 
            <mobile>+91-987654321</mobile> 
        </contact> 
    </organization> 
XML; 
  
$xmlIt = new SimpleXMLIterator($xml); 
  
// Loop starts from first element of xml and  
// run upto when elements are not valid 
for( $xmlIt->rewind(); $xmlIt->valid(); $xmlIt->next() ) { 
      
    var_dump($xmlIt->key()); 
} 
  
?> 

Output:

string(4) "name"
string(7) "address"
string(7) "contact"

Reference: https://www.php.net/manual/en/simplexmliterator.key.php

Whether you’re preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape, zambiatek Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we’ve already empowered, and we’re here to do the same for you. Don’t miss out – check it out now!