PHP ActiveX

Compress Bytes to Base64 (or any other encoding)

See more Compression Examples

Compresses bytes to base64 or any other encoding. Also decompress to return the original. PHP ActiveX

<?php

$success = 0;

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// First create some binary data to compress.
$binData = new COM("Chilkat.BinData");

for ($i = 1; $i <= 16; $i++) {
    $binData->AppendEncoded('000102030405060708090A0B0C0D0E0F','hex');
}

$compress = new COM("Chilkat.Compression");
$compress->Algorithm = 'deflate';
$compress->EncodingMode = 'base64';

$uncompressedBytes = $binData->GetBinary();

// Compress and return the compressed bytes in base64 format.
$compressedBase64 = $compress->compressBytesENC($uncompressedBytes);
print 'compressed and base64 encoded: ' . $compressedBase64 . "\n";

// Compress and return in hex format:
$compress->EncodingMode = 'hex';
$compressedHex = $compress->compressBytesENC($uncompressedBytes);
print 'compressed and hex encoded: ' . $compressedHex . "\n";

// Now decompress..
$binData2 = new COM("Chilkat.BinData");

// Decompress the base64..
$compress->EncodingMode = 'base64';
$uncompressedBytes = $compress->DecompressBytesENC($compressedBase64);
$binData2->AppendBinary($uncompressedBytes);
// Show the uncompressed bytes in hex format:
print $binData2->getEncoded('hex') . "\n";
print '--' . "\n";

// Decompress the hex..
$compress->EncodingMode = 'hex';
$uncompressedBytes = $compress->DecompressBytesENC($compressedHex);
$binData2->Clear();
$binData2->AppendBinary($uncompressedBytes);
// Show the uncompressed bytes in hex format:
print $binData2->getEncoded('hex') . "\n";
print '--' . "\n";

?>