php 한글 메뉴얼 도움말 검색 사이트 Copy the iterator into an array [function.iterator-to-array]

설명

array iterator_to_array ( Traversable $iterator [, bool $use_keys = true ] )

Copy the elements of an iterator into an array.

인수

iterator

The iterator being copied.

use_keys

Whether to use the iterator element keys as index.

In PHP 5.5 and later, if a key is an array or object, a warning will be generated. NULL keys will be converted to an empty string, double keys will be truncated to their integer counterpart, resource keys will generate a warning and be converted to their resource ID, and boolean keys will be converted to integers.

반환값

An array containing the elements of the iterator.

변경점

버전	설명
5.5.0	iterator_to_array() gained support for key types other than integer and string when the `use_keys` parameter is enabled.
5.2.1	The `use_keys` parameter was added.

예제

Example #1 iterator_to_array() example


<?php
$iterator = new ArrayIterator(array('recipe'=>'pancakes', 'egg', 'milk', 'flour'));
var_dump(iterator_to_array($iterator, true));
var_dump(iterator_to_array($iterator, false));
?>

위 예제의 출력:

array(4) {
  ["recipe"]=>
  string(8) "pancakes"
  [0]=>
  string(3) "egg"
  [1]=>
  string(4) "milk"
  [2]=>
  string(5) "flour"
}
array(4) {
  [0]=>
  string(8) "pancakes"
  [1]=>
  string(3) "egg"
  [2]=>
  string(4) "milk"
  [3]=>
  string(5) "flour"
}