|Classes of Sam Shull||>||LZW||>||Download .zip .tar.gz||>||Support forum (1)||>||Blog||>||Latest changes|
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|Algorithms||Numerical and statistical algorithms||View top rated classes|
|Compression||Data compression and file archive manipulation||View top rated classes|
Prize: One license of PHPEdit Professional
|LZW (Lempel-Ziv-Welch) is a compression algorithm made popular for its use in the formats GIF, TIFF and PDF.
This class can be used to compress and decompress data that uses LZW algorithm in pure PHP.
It makes possible to encode and decode image and documents that employ this algorithm using only pure PHP code, thus without any special PHP extensions.
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|Applications that use this class|
|LZW Unisys Patent Information||The LZW Patent is expired, here is proof from Unisys themselves.|
|Wikipedia Description of LZW||Wikipedia Description of LZW|