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