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());
?>
Ds\Map::toArray
(PECL ds >= 1.0.0)
Ds\Map::toArray — Converts the map to an array
Descrierea
public Ds\Map::toArray
(
) : array
Converts the map to an array.
Precauţie
Maps where non-scalar keys are can't be converted to an array.
Precauţie
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.
Notă:
Casting to an array is not supported yet.
Parametri
Această funcție nu are parametri.
Valorile întoarse
An array containing all the values in the same order as the map.
Exemple
Example #1 Ds\Map::toArray() example
<?php
$map = new \Ds\Map([
"a" => 1,
"b" => 2,
"c" => 3,
]);
var_dump($map->toArray());
?>
Exemplul de mai sus va afișa ceva similar cu:
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
