array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'tr', ), 'this' => array ( 0 => 'ds-map.apply.php', 1 => 'Ds\\Map::apply', ), 'up' => array ( 0 => 'class.ds-map.php', 1 => 'Ds\\Map', ), 'prev' => array ( 0 => 'ds-map.allocate.php', 1 => 'Ds\\Map::allocate', ), 'next' => array ( 0 => 'ds-map.capacity.php', 1 => 'Ds\\Map::capacity', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/ds/ds/map/apply.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(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.
Hiçbir değer dönmez.
Örnek 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);
?>
Yukarıdaki örnek şuna benzer bir çıktı üretir:
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 ) )