CachingIterator::getFlags()

(PHP 5>=5.2.0,PHP 7)

Get flags used

说明

publicCachingIterator::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...

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