7-Zip provides a SDK:
Code Example:
PHP Code:
private static void CompressFileLZMA(string inFile, string outFile)
{
SevenZip.Compression.LZMA.Encoder coder = new SevenZip.Compression.LZMA.Encoder();
FileStream input = new FileStream(inFile, FileMode.Open);
FileStream output = new FileStream(outFile, FileMode.Create);
// Write the encoder properties
coder.WriteCoderProperties(output);
// Write the decompressed file size.
output.Write(BitConverter.GetBytes(input.Length), 0, 8);
// Encode the file.
coder.Code(input, output, input.Length, -1, null);
output.Flush();
output.Close();
}
private static void DecompressFileLZMA(string inFile, string outFile)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
FileStream input = new FileStream(inFile, FileMode.Open);
FileStream output = new FileStream(outFile, FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte [] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
}
