CachingIterator::getFlags

(PHP 5 >= 5.2.0, PHP 7)

CachingIterator::getFlags — Get flags used

说明

public CachingIterator::getFlags ( void ) : int

Warning

本函数还未编写文档，仅有参数列表。

Get the bitmask of the flags used for this CachingIterator instance.

参数

此函数没有参数。

返回值

Description...

User Contributed Notes

Anonymous 06-Feb-2015 09:57


use 'CachingIterator::TOSTRING_USE_INNER' flag



<?php

class A extends ArrayIterator {

    public function __toString(){

        return 'toString this class';

        }

    }



$iterator = new A(array('apple'=>10, 'banana'=>20, 'cat'=>30));

$cache    = new CachingIterator($iterator, CachingIterator::TOSTRING_USE_INNER);



$cache->next();

$cache->next();



echo $cache;



/*

output:

toString this class



*/

?>

kais7mg at qq dot com 06-Feb-2015 09:49


use the 'CachingIterator::TOSTRING_USE_KEY', when echo this Object,

output current 'key';



<?php

$iterator = new ArrayIterator(array('apple'=>10, 'banana'=>20, 'cat'=>30));

$cache    = new CachingIterator($iterator, CachingIterator::TOSTRING_USE_KEY);



$cache->next();

$cache->next();



echo $cache;

?>



output:

banana