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iterator_to_array

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(PHP 5 >= 5.1.0, PHP 7)

iterator_to_array — Copy the iterator into an array

Description

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

Copy the elements of an iterator into an array.

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Parameters

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, float 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.

Note:

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 paramater to FALSE to get all the values in any case.

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Return Values

An array containing the elements of the iterator.

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Changelog

Version Description
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.

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Examples

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));
?>

The above example will output:

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"
}

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Document created the 30/01/2003, last modified the 26/10/2018
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References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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