CachingIterator::getCache

(PHP 5 >= 5.2.0, PHP 7)

CachingIterator::getCache — Retrieve the contents of the cache

说明

public CachingIterator::getCache ( void ) : array

Retrieve the contents of the cache.

Note:
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.

范例

Example #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());
?>

以上例程会输出：

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