CachingIterator::getCache

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

CachingIterator::getCache — Retrieve the contents of the cache

说明

publicCachingIterator::getCache(): array

Retrieve the contents of the cache.

注意:
The CachingIterator::FULL_CACHE flag must be being used.

参数

此函数没有参数。

返回值

An array containing the cache items.

错误／异常

Throws a BadMethodCallException when the CachingIterator::FULL_CACHE flag is not being used.

示例

示例 #1 CachingIterator::getCache() example

<?php
$iterator = new ArrayIterator(array(1, 2, 3));
$cache = new CachingIterator($iterator, CachingIterator::FULL_CACHE);

$cache->next();
$cache->next();
var_dump($cache->getCache());

$cache->next();
var_dump($cache->getCache());
?>

以上示例会输出：

array(2) { [0]=> int(1) [1]=> int(2) } array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) }