(PHP 5 >= 5.1.0, PHP 7, PHP 8)
iterator_to_array — Copy the iterator into an array
Copy the elements of an iterator into an array.
iteratorThe iterator being copied.
preserve_keysWhether 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.
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 parameter tofalseto get all the values in any case.
An array containing the elements of the iterator.
| Version | Description |
|---|---|
| 8.2.0 |
The type of iterator has been widened from
Traversable to
Traversable|array.
|
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"
}