PHPerKaigi 2024

Random\Randomizer::shuffleArray

(PHP 8 >= 8.2.0)

Random\Randomizer::shuffleArrayGet a permutation of an array

说明

public Random\Randomizer::shuffleArray(array $array): array

Returns a uniformly selected permutation of the input array.

Each possible permutation of the input array is equally likely to be returned.

参数

array

The array whose values are shuffled.

The input array will not be modified.

返回值

A permutation of the values of array.

Array keys of the input array will not be preserved; the returned array will be a list (array_is_list()).

错误/异常

示例

示例 #1 Random\Randomizer::shuffleArray() example

<?php
$r
= new \Random\Randomizer();

$fruits = [ 'red' => '🍎', 'green' => '🥝', 'yellow' => '🍌', 'pink' => '🍑', 'purple' => '🍇' ];

// Shuffle array:
echo "Salad: ", implode(', ', $r->shuffleArray($fruits)), "\n";

// Shuffle again:
echo "Another Salad: ", implode(', ', $r->shuffleArray($fruits)), "\n";
?>

以上示例的输出类似于:

Salad: 🍎, 🥝, 🍇, 🍌, 🍑
Another Salad: 🍑, 🍇, 🥝, 🍎, 🍌
add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top