PHP | CachingIterator getInnerIterator() Function Last Updated : 07 Mar, 2024 Summarize Comments Improve Suggest changes Share Like Article Like Report The CachingIterator::getInnerIterator() function is an inbuilt function in PHP which is used to return the iterator sent to the constructor. Syntax: Iterator CachingIterator::getInnerIterator( void ) Parameters: This function does not accept any parameters. Return Value: This function returns an object implementing the Iterator interface. Below programs illustrate the CachingIterator::getInnerIterator() function in PHP: Program 1: php <?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 $element; if($cachIt->hasNext()) { echo ", "; } } ?> Output: G, e, e, k, s Program 2: php <?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 . " => " . $value; if($cachIt->hasNext()) { echo "\n"; } } ?> Output: a => Geeks b => for c => Geeks d => Computer e => Science f => Portal Comment More infoAdvertise with us Next Article PHP | CachingIterator getFlags() Function J jit_t Follow Improve Article Tags : Web Technologies PHP PHP-function PHP-Iterators Similar Reads PHP | CachingIterator next() Function 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 1 min read PHP | CachingIterator getCache() Function 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 item 2 min read PHP | CachingIterator getFlags() Function The CachingIterator::getFlags() function is an inbuilt function in PHP which is used to get the bitmask of the flags used for this CachingIterator instance. Syntax: int CachingIterator::getFlags( void ) Parameters: This function does not accept any parameters. Return Value: This function returns the 1 min read PHP CachingIterator hasNext() Function The CachingIterator::hasNext() function is an inbuilt function in PHP that is used to iterate the next element in the iterator. CachingIterator class is to cache the elements of an underlying iterator to improve performance when iterating over the same data multiple times. Syntax: public CachingIter 2 min read PHP | AppendIterator getIteratorIndex() Function The AppendIterator::getIteratorIndex() function is an inbuilt function in PHP which is used to get the index of the current inner iterator. Syntax: int AppendIterator::getIteratorIndex( void ) Parameters: This function does not accept any parameters. Return Value: This function returns an integer va 2 min read PHP | CachingIterator key() Function The CachingIterator::key() function is an inbuilt function in PHP which is used to return the key for the current element. Syntax: scalar CachingIterator::key( void ) Parameters: This function does not accept any parameters. Return Value: This function returns the key value of the current element. B 1 min read Like