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());
?>
Descripción
Converts the map to an array.
Precaución
Maps where non-scalar keys are can't be converted to an array.
Precaución
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.
Nota:
Casting to an array is not supported yet.
Parámetros
Esta función no tiene parámetros.
Valores devueltos
An array containing all the values in the same order as the map.
Ejemplos
Ejemplo #1 Ds\Map::toArray() example
<?php
$map = new \Ds\Map([
"a" => 1,
"b" => 2,
"c" => 3,
]);
var_dump($map->toArray());
?>El resultado del ejemplo sería algo similar a:
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
