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());
?>
Description
Converts the map to an tableau.
Attention
Maps where non-scalar keys are can't be converted to an tableau.
Attention
An tableau 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.
Note:
Casting to an tableau is not supported yet.
Liste de paramètres
Cette fonction ne contient aucun paramètre.
Valeurs de retour
An tableau containing all the values in the same order as the map.
Exemples
Exemple #1 Ds\Map::toArray() example
<?php
$map = new \Ds\Map([
"a" => 1,
"b" => 2,
"c" => 3,
]);
var_dump($map->toArray());
?>Résultat de l'exemple ci-dessus est similaire à :
array(3) {
["a"]=>
int(1)
["b"]=>
int(2)
["c"]=>
int(3)
}
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User Contributed Notes 1 note
foalford at gmail dot com ¶
4 years ago
