krypt0nn/caesar

PHP 7+ implementation of the Caesar's cipher

1.0.0 2021-07-31 19:39 UTC

Requires

• php: >=7.4

GPL-3.0-or-later

• Nikita Podvirnyy

• cipher

README

PHP 7+ implementation of the Caesar's cipher

Installation

composer require krypt0nn/caesar

Using

<?php

require 'vendor/autoload.php';

use function Caesar\caesar;

# And this will print "Hello, World!", of course
echo caesar (caesar ('Hello, World!', 1234), -1234);

Function Caesar\caesar has two arguments: required string $text and optional (and technically also required) int $offset = 0. The second parameter defines the step of characters in the alphabet's encoding. If you want to decode some encoded text - you should use the opposite offset parameter you've used in the encoding. As in the example above we encoded text with offset 1234 and decoded it using its opposite value - -1234. Also we could encode our text with offset -1234 and decode it with 1234

Author: Nikita Podvirnyy