The CachingIterator::next() function is an inbuilt function in PHP which is used to move the iterator to the forward.
Syntax:
void CachingIterator::next( void )
Parameters: This function does not accept any parameters.
Return Value: This function does not return any value.
Below programs illustrate the CachingIterator::next() function in PHP:
Program 1:
<?php // Declare an array $arr = array('G', 'e', 'e', 'k', 's'); // Create a new CachingIterator $cachIt = new CachingIterator( new ArrayIterator($arr), CachingIterator::FULL_CACHE ); foreach($cachIt as $element) { echo $cachIt->current() . " "; $cachIt->next(); } ?> |
Output:
G e s
Program 2:
<?php // Declare an ArrayIterator $arr = array( "a" => "Geeks", "b" => "for", "c" => "Geeks", "d" => "Computer", "e" => "Science", "f" => "Portal"); // Create a new CachingIterator $cachIt = new CachingIterator( new ArrayIterator($arr), CachingIterator::FULL_CACHE ); foreach($cachIt as $key => $value) { echo $key . " => " . $cachIt->current() . "\n"; $cachIt->next(); } ?> |
Output:
a => Geeks c => Geeks e => Science
Reference: https://www.php.net/manual/en/cachingiterator.next.php
