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Class: ASCII85

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  Classes of Sam Shull  >  ASCII85  >  Download .tar.gz .zip  >  Support forum Support forum (1)  >  Blog Blog  >  RSS 1.0 feed RSS 2.0 feed Latest changes  
Name: ASCII85
Support forum Support forum
Base name: ascii85
Description: Encode and decode data using the ASCII85 algorithm
Related classes: , , , , , ,
Version: -
PHP version: 4.0
License: BSD License
All time users: 808 users
All time rank: 3442
Week users: 2 users
Week rank: 1677
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Author: Sam Shull is available for providing paid consulting. Contact Sam Shull .
Packages: 9 Browse this author's classes Browse this author's classes
Country: United States United States - PHP jobs in United States
Age: 35
All time rank: 40744 in United States United States
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  Detailed description  
This class can be used to encode and decode data using the ASCII85 algorithm.

It can take a string of data and encode it with the ASCII85 algorithm. It can also do the opposite, i.e. extract the original data from an encoded string using the same algorithm.

 

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Group folder image Algorithms Numerical and statistical algorithms View top rated classes
Group folder image Text processing Manipulating and validating text data View top rated classes

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  Innovation Award  
PHP Programming Innovation award nominee
August 2007
Number 10
 ASCII 85 is an algorithm that can encode binary data using only ASCII characters.

Data encoded with ASCII 85 uses a wider range of characters than similar algorithms like base 64. Therefore it provides in a more efficient encoding of binary data. That is why it is used to encode binary data inside data formats like PDF.

This class provides a pure PHP implementation of ASCII 85, thus making it possible to encode and decode PDF files that use this algorithm, without needing special PHP extensions.

Manuel Lemos

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  Related links  
Link Description
Wikipedia Description of ASCII85 Description of ASCII85

  Files folder image Files  
File Role Description
Accessible without login Plain text file ascii85.php Class the base class
Plain text file example Example An example of ASCII85 encoding

Download all files: ascii85.tar.gz ascii85.zip
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