PHP

Decompress Gzip Data In-Place Using BinData

See more Gzip Examples

This example demonstrates how to use the UncompressBd method to decompress Gzip data stored in a BinData object.

The compressed .gz file is first loaded into memory. The UncompressBd method then decompresses the data in-place, meaning the original compressed bytes in the BinData object are replaced with the uncompressed data.

After decompression, the example writes the resulting data to a file. This approach is useful when working entirely in memory before saving or further processing the uncompressed data.

Chilkat2 PHP

<?php

use Chilkat2\BinData;
use Chilkat2\Gzip;

// This example demonstrates how to decompress Gzip data stored in a BinData object.
// The decompression is done in-place, replacing the compressed data with the original data.

$gzip = new Gzip();
$bd = new BinData();

// Load a .gz file into BinData:
try {
    $bd->LoadFile('example.txt.gz');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo 'Compressed size (bytes): ', $bd->NumBytes, "\n";

// Uncompress the data in-place:
try {
    $gzip->UncompressBd($bd);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo 'Decompressed size (bytes): ', $bd->NumBytes, "\n";

// Save the uncompressed data to a file:
try {
    $bd->WriteFile('example.txt');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo "File successfully uncompressed to example.txt\n";