PHP | CachingIterator setFlags() Function

Last Updated : 26 Nov, 2019
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The CachingIterator::setFlags() function is an inbuilt function in PHP which is used to set the flags for the CachingIterator object. Syntax: 
void CachingIterator::setFlags( int $flags )
Parameters: This function accepts a single parameter $flags which holds the value of bitmask of the flags to set. Return Value: This function does not return any value. Below programs illustrate the CachingIterator::setFlags() 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
);

$cachIt->setFlags(128);

// Get the flag
$flag = $cachIt->getFlags();

// Display the flag
var_dump($flag);

?>
Output: 
int(128)
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
);
 
// Set the flags
$cachIt->setFlags(512);

// Get the flag
$flag = $cachIt->getFlags();
 
// Display the flag value
var_dump($flag);

?>
Output: 
int(512)
Reference: https://www.php.net/manual/en/cachingiterator.setflags.php

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