iterator_to_array

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

iterator_to_array — Copy the iterator into an array

Beschreibung

iterator_to_array(Traversable|array $iterator, bool $preserve_keys = true): array

Copy the elements of an iterator into an array.

Parameter-Liste

iterator

The iterator being copied.

preserve_keys

Whether to use the iterator element keys as index.

If a key is an array or object, a warning will be generated. null keys will be converted to an empty string, float keys will be truncated to their int counterpart, resource keys will generate a warning and be converted to their resource ID, and bool keys will be converted to integers.

Hinweis:
If this parameter is not set or set to true, duplicate keys will be overwritten. The last value with a given key will be in the returned array. Set this parameter to false to get all the values in any case.

Rückgabewerte

An array containing the elements of the iterator.

Changelog

Version	Beschreibung
8.2.0	The type of `iterator` has been widened from Traversable to Traversable\|array.

Beispiele

Beispiel #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));
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

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"
}