Random\Randomizer::shuffleBytes

(PHP 8 >= 8.2.0)

Random\Randomizer::shuffleBytesGet a byte-wise permutation of a string

Açıklama

public Random\Randomizer::shuffleBytes(string $bytes): string

Returns a uniformly selected permutation of the input bytes.

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

Bağımsız Değişkenler

bytes

The string whose bytes are shuffled.

The input string will not be modified.

Dönen Değerler

A permutation of the bytes of bytes.

Hatalar/İstisnalar

Örnekler

Örnek 1 Random\Randomizer::shuffleBytes() example

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

// Shuffle bytes in a string:
echo "«", $r->shuffleBytes("PHP is great!"), "»\n";
?>

Yukarıdaki örnek şuna benzer bir çıktı üretir:

« ga rHs!PPiet»

Örnek 2 Byte-wise shuffling breaks Unicode characters

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

$unicode = "🍎, 🥝, 🍌, 🍑, 🍇";
$shuffled = $r->shuffleBytes( $unicode );

// Byte-wise shuffling of non-ASCII characters destroys them,
// resulting in invalid sequences (indicated by the Unicode
// replacement character) or even entirely different characters
// appearing in the output.
echo "Original: ", $unicode, "\n";
echo
"Shuffled: «", $shuffled, "»\n";
echo
"Shuffled Bytes: ", bin2hex($shuffled), "\n";
?>

Yukarıdaki örnek şuna benzer bir çıktı üretir:

Original: 🍎, 🥝, 🍌, 🍑, 🍇
Shuffled: «� ��,�����🍟,� �� �, �,��»
Shuffled Bytes: 87208e912c8d9fa5f0f0f09f8d9f2cf09f208c9d20f02c209f2c8d8d
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User Contributed Notes 1 note

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1
okerem@github
6 months ago
For a unicode-safe shuffling;

<?php
$r
= new \Random\Randomizer();
$s = join($r->shuffleArray(mb_str_split($string)));
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