RosettaCodeData/Task/Substitution-cipher/PHP/substitution-cipher.php

20 lines
607 B
PHP

<?php
$alphabet = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$key = 'cPYJpjsBlaOEwRbVZIhQnHDWxMXiCtUToLkFrzdAGymKvgNufeSq';
// Encode input.txt, and save result in output.txt
file_put_contents('output.txt', strtr(file_get_contents('input.txt'), $alphabet, $key));
$source = file_get_contents('input.txt');
$encoded = file_get_contents('output.txt');
$decoded = strtr($encoded, $key, $alphabet);
echo
'== SOURCE ==', PHP_EOL,
$source, PHP_EOL, PHP_EOL,
'== ENCODED ==', PHP_EOL,
$encoded, PHP_EOL, PHP_EOL,
'== DECODED ==', PHP_EOL,
$decoded, PHP_EOL, PHP_EOL;