(PECL ds >= 1.0.0)
Ds\Map::apply — Updates all values by applying a callback function to each value
Updates all values by applying a callback function to
each value in the map.
callback
A callable to apply to each value in the map.
The callback should return what the value should be replaced by.
No value is returned.
Example #1 Ds\Map::apply() example
<?php
$map = new \Ds\Map(["a" => 1, "b" => 2, "c" => 3]);
$map->apply(function($key, $value) { return $value * 2; });
print_r($map);
?>The above example will output something similar to:
Ds\Map Object ( [0] => Ds\Pair Object ( [key] => a [value] => 2 ) [1] => Ds\Pair Object ( [key] => b [value] => 4 ) [2] => Ds\Pair Object ( [key] => c [value] => 6 ) )