The CachingIterator::__construct() function is an inbuilt function in PHP which is used to construct a new CachingIterator object for the iterator.
Syntax:
public CachingIterator::__construct( Iterator $iterator, int $flags = self::CALL_TOSTRING )
Parameters: This function accepts two parameters as mentioned above and described below:
- $iterator: This parameter holds the iterator of cache.
- $flags: This parameter holds the bitmask of flags.
Return Value: This function does not return any value.
Below programs illustrate the CachingIterator::__construct() 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 ); // Display the result foreach($cachIt as $element) { echo $element . " "; } ?> |
Output:
G e e k 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 ); // Display the result foreach($cachIt as $key => $value) { echo $key . " => " . $value . "\n"; } ?> |
Output:
a => Geeks b => for c => Geeks d => Computer e => Science f => Portal
Reference: https://www.php.net/manual/en/cachingiterator.construct.php
