index/src/Serialisation/UriBase64Serialiser.php

35 lines
924 B
PHP
Raw Normal View History

2022-09-13 13:13:11 +00:00
<?php
// UriBase64Serialiser.php
// Created: 2022-01-13
// Updated: 2022-02-27
namespace Index\Serialisation;
use Index\IO\Stream;
/**
* Provides URL-safe Base64 encoding.
*/
class UriBase64Serialiser extends Serialiser {
/**
* Encodes binary data as a Base64 string.
*
* @param string $input Input binary data.
* @return string Base64 string representing the binary data.
*/
public function serialise(mixed $input): string {
return rtrim(strtr(base64_encode((string)$input), '+/', '-_'), '=');
}
/**
* Decodes a Base64 string back to binary data.
*
* @param Stream|string $input Input Base64 string.
* @return string Binary data.
*/
public function deserialise(Stream|string $input): mixed {
$input = (string)$input;
return base64_decode(str_pad(strtr($input, '-_', '+/'), strlen($input) % 4, '=', STR_PAD_RIGHT));
}
}