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>neveropen</name> <address>Noida India</address> <contact> <email>abc@geeksforgeeks.org</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
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