91亚洲精品福利在线播放,欧美日韩国产在线人成app,天天躁日日躁疯人影院,sao虎视频最新网站入口,精品久久久久久中文字幕女

Ds\Map::ksorted

(No version information available, might only be in Git)

Ds\Map::ksorted — Returns a copy, sorted by key

說(shuō)明

public Ds\Map::ksorted(callable $comparator = ?): Ds\Map

Returns a copy sorted by key, using an optional comparator function.

參數

comparator

在第一個(gè)參數小于，等于或大于第二個(gè)參數時(shí)，該比較函數必須相應地返回一個(gè)小于，等于或大于 0 的整數。

callback(mixed $a, mixed $b): int
警告

Returning non-integer values from the comparison function, such as float, will result in an internal cast to int of the callback's return value. So values such as 0.99 and 0.1 will both be cast to an integer value of 0, which will compare such values as equal.

返回值

Returns a copy of the map, sorted by key.

范例

示例 #1 Ds\Map::ksorted() example

<?php
$map = new \Ds\Map(["b" => 2, "c" => 3, "a" => 1]);

print_r($map->ksorted());
?>

以上例程的輸出類(lèi)似于：

Ds\Map Object
Ds\Map Object
(
    [0] => Ds\Pair Object
        (
            [key] => a
            [value] => 1
        )

    [1] => Ds\Pair Object
        (
            [key] => b
            [value] => 2
        )

    [2] => Ds\Pair Object
        (
            [key] => c
            [value] => 3
        )

)

示例 #2 Ds\Map::ksorted() example using a comparator

<?php
$map = new \Ds\Map([1 => "x", 2 => "y", 0 => "z"]);

// Reverse
$sorted = $map->ksorted(function($a, $b) {
    return $b <=> $a;
});

print_r($sorted);
?>

以上例程的輸出類(lèi)似于：

Ds\Map Object
Ds\Map Object
(
    [0] => Ds\Pair Object
        (
            [key] => 2
            [value] => y
        )

    [1] => Ds\Pair Object
        (
            [key] => 1
            [value] => x
        )

    [2] => Ds\Pair Object
        (
            [key] => 0
            [value] => z
        )

)
91亚洲精品福利在线播放,欧美日韩国产在线人成app,天天躁日日躁疯人影院,sao虎视频最新网站入口,精品久久久久久中文字幕女