(PHP 5 >= 5.2.0, PHP 7)
CachingIterator::getFlags — Get flags used
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.
此函数没有参数。
Description...
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
*/
?>
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