Php/docs/cachingiterator.getcache

• PHP Manual
• CachingIterator
• Retrieve the contents of the cache

CachingIterator::getCache

(PHP 5 >= 5.2.0, PHP 7)

CachingIterator::getCache — Retrieve the contents of the cache

说明

public CachingIterator::getCache ( ) : 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)
}