The CachingIterator::getCache() function is an inbuilt function in PHP which is used to retrieve the contents of the cache.
Syntax:
array CachingIterator::getCache( void )
Parameters: This function does not accept any parameters.
Return Value: This function returns an array containing the cache items.
Below programs illustrate the CachingIterator::getCache() 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
); // Move to next position $cachIt ->next();
// Display the content of cache var_dump( $cachIt ->getCache());
// Move to next position $cachIt ->next();
// Display the content of cache var_dump( $cachIt ->getCache());
?> |
Output:
array(1) { [0]=> string(1) "G" } array(2) { [0]=> string(1) "G" [1]=> string(1) "e" }
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
); // Move to next position $cachIt ->next();
$cachIt ->next();
$cachIt ->next();
// Display the content of cache var_dump( $cachIt ->getCache());
// Move to next position $cachIt ->next();
// Display the content of cache var_dump( $cachIt ->getCache());
?> |
Output:
array(3) { ["a"]=> string(5) "Geeks" ["b"]=> string(3) "for" ["c"]=> string(5) "Geeks" } array(4) { ["a"]=> string(5) "Geeks" ["b"]=> string(3) "for" ["c"]=> string(5) "Geeks" ["d"]=> string(8) "Computer" }
Reference: https://www.php.net/manual/en/cachingiterator.getcache.php