CachingIterator::getCache

(PHP 5 >= 5.2.0)

CachingIterator::getCache — Retrieve the contents of the cache

说明

public array CachingIterator::getCache ( void )

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)
}