Ds\Map::toArray

(PECL ds >= 1.0.0)

Ds\Map::toArray Converts the map to an array

Opis

public Ds\Map::toArray ( void ) : array

Converts the map to an array.

Uwaga

Maps where non-scalar keys are can't be converted to an array.

Uwaga

An array will treat all numeric keys as integers, eg. "1" and 1 as keys in the map will only result in 1 being included in the array.

Informacja:

Casting to an array is not supported yet.

Parametry

Ta funkcja nie posiada parametrów.

Zwracane wartości

An array containing all the values in the same order as the map.

Przykłady

Przykład #1 Ds\Map::toArray() example

<?php
$map 
= new \Ds\Map([
    
"a" => 1,
    
"b" => 2,
    
"c" => 3,
]);

var_dump($map->toArray());
?>

Powyższy przykład wyświetli coś podobnego do:

array(3) {
  ["a"]=>
  int(1)
  ["b"]=>
  int(2)
  ["c"]=>
  int(3)
}
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User Contributed Notes 1 note

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foalford at gmail dot com
2 years ago
When using Hashable object as $key, Map::put() will not call the Hashable::hash() on the key until later. For example

<?
class Key implements \Ds\Hashable
{
    protected $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

    public function equals($obj) : bool
    {
        return $this->id == $obj->id;
    }

    public function hash()
    {
        return $this->id;
    }
}
$map = new \Ds\Map();
$myki = new Key('myki');

$map->put($myki, "Value String");

var_dump($map->get($myki));
echo 'Map::put() store the Hashable object and it cause error in toArray()'. PHP_EOL;
var_dump($map->toArray());
?>
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