Random\Randomizer::shuffleBytes

(PHP 8 >= 8.2.0)

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

Descripción

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.

Parámetros

bytes

The string whose bytes are shuffled.

The input string will not be modified.

Valores devueltos

A permutation of the bytes of bytes.

Errores/Excepciones

Ejemplos

Ejemplo #1 Random\Randomizer::shuffleBytes() example

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

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

El resultado del ejemplo sería algo similar a:

« ga rHs!PPiet»

Ejemplo #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";
?>

El resultado del ejemplo sería algo similar a:

Original: 🍎, 🥝, 🍌, 🍑, 🍇
Shuffled: «� ��,�����🍟,� �� �, �,��»
Shuffled Bytes: 87208e912c8d9fa5f0f0f09f8d9f2cf09f208c9d20f02c209f2c8d8d