https://github.com/scottchiefbaker/php-base85

PHP Base85 library
https://github.com/scottchiefbaker/php-base85

Last synced: 9 days ago
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PHP Base85 library

• Host: GitHub
• URL: https://github.com/scottchiefbaker/php-base85
• Owner: scottchiefbaker
• License: gpl-3.0
• Created: 2014-01-07T22:35:33.000Z (almost 11 years ago)
• Default Branch: master
• Last Pushed: 2024-04-13T00:14:34.000Z (7 months ago)
• Last Synced: 2024-10-17T22:59:56.308Z (19 days ago)
• Language: PHP
• Size: 44.9 KB
• Stars: 16
• Watchers: 3
• Forks: 4
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
PHP Base85

==========

A pure PHP extension to encode and decode data with [base85](http://en.wikipedia.org/wiki/Ascii85).

Usage:

------

```PHP

require("/path/to/base85.class.php");

$encoded = base85::encode('Base85 is pretty cool');

$decoded = base85::decode(':e4D*;K$&\Er');

print "Encoded: $encoded\n";

print "Decoded: $decoded\n";

```

Should output:

```

Encoded: 6=FqH3&MgmF!,FBATW$>+Cf>.C]

Decoded: PHP Rocks

```

**Note:** There is a PHP extension written in C also named [php-base85](https://github.com/raducu/php-base85).

That library is most likely faster, but may be harder to install (requires

the ability to load extensions).

Note on 32bit:

--------------

Base85 requires doing math on numbers larger than 2^31. 32bit PHP cannot

do math on an integer this large. On 32bit systems we use the `gmp` extension

to work around this limitation. If you are on a 32bit system make sure you

have the `gmp` module enabled in PHP.

All unit tests pass on a 32bit RaspberryPi.