Implement File Compression and Decompression on FTP Server with PHP

Implement File Compression and Decompression on FTP Server with PHP

In web development, FTP servers are commonly used for file transfer. File compression and decompression, on the other hand, effectively reduce file size and improve transfer efficiency. This article will guide you on how to implement file compression and decompression on an FTP server using PHP.

Prerequisites

Before starting, make sure that the FTP extension and ZIP extension are installed and enabled on your server. You can enable these extensions in the php.ini file by configuring the extension_dir directive to ensure the zip and ftp modules are active.

Compressing Files

To compress files on an FTP server, we first need to create a ZIP file and add the files to it one by one. Here is an example code demonstrating how to compress files on an FTP server using PHP.

<?php
// FTP server connection details
$ftp_host = 'server_address';
$ftp_user = 'username';
$ftp_pass = 'password';

// Directory and name of files to compress
$zip_path = 'path/to/compress';
$zip_name = 'compress.zip';

// Connect to the FTP server
$ftp = ftp_connect($ftp_host);
ftp_login($ftp, $ftp_user, $ftp_pass);

// Create a ZIP file
$zip = new ZipArchive;
$zip->open($zip_name, ZipArchive::CREATE);

// Loop through the directory and add each file to the ZIP file
$files = scandir($zip_path);
foreach ($files as $file) {
    if ($file !== '.' && $file !== '..') {
        $zip->addFile($zip_path . '/' . $file, $file);
    }
}

// Close the ZIP file
$zip->close();

// Upload the ZIP file to the FTP server
ftp_put($ftp, $zip_name, $zip_name, FTP_BINARY);

// Close the FTP connection
ftp_close($ftp);
?>

Decompressing Files

To decompress files on an FTP server, we need to download the ZIP file from the server first and then extract it to a specified directory. Below is an example of how to decompress a file.

<?php
// FTP server connection details
$ftp_host = 'server_address';
$ftp_user = 'username';
$ftp_pass = 'password';

// ZIP file to decompress and target directory
$zip_name = 'compress.zip';
$unzip_path = 'path/to/unzip';

// Connect to the FTP server
$ftp = ftp_connect($ftp_host);
ftp_login($ftp, $ftp_user, $ftp_pass);

// Download the ZIP file from the FTP server
ftp_get($ftp, $zip_name, $zip_name, FTP_BINARY);

// Decompress the ZIP file to the specified directory
$zip = new ZipArchive;
if ($zip->open($zip_name) === TRUE) {
    $zip->extractTo($unzip_path);
    $zip->close();
    echo 'Decompression successful!';
} else {
    echo 'Decompression failed!';
}

// Close the FTP connection
ftp_close($ftp);
?>

Conclusion

Using the methods mentioned above, you can easily implement file compression and decompression on an FTP server. Whether you're compressing files to reduce size or decompressing them for further processing, these operations improve file transfer efficiency. We hope the code examples provided in this article help you manage file transfer tasks on your FTP server more effectively.