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:
Output:
string(4) "name"
string(7) "address"
string(7) "contact"
Reference: https://www.php.net/manual/en/simplexmlelement.key
