How to schedule backup files on FTP server through PHP

How to regularly back up files on the FTP server through PHP

In development, file backup is an important task, which can ensure data security and respond to emergencies. It is a common practice for developers of websites or applications to back up files to an FTP server. This article will introduce how to use PHP language to regularly back up files on an FTP server and provide corresponding code examples.

FTP (File Transfer Protocol) is a protocol used for file transfer on the network. PHP provides some functions and classes for communicating with FTP servers and performing file operations. We can use these functions and classes to implement file backup functions.

The following is a code example that uses PHP to regularly back up files to an FTP server:

<?php
// FTP服务器信息
$ftpServer = 'ftp.example.com';
$ftpUsername = 'username';
$ftpPassword = 'password';

// 备份文件的目录和文件名
$backupFolderPath = 'C:/backup/';
$backupFileName = 'website_backup_'.date('Y-m-d').'.zip';

// 需要备份的文件路径
$sourceFolderPath = 'C:/website/';

// 备份文件保存路径
$backupFilePath = $backupFolderPath.$backupFileName;

// 建立FTP连接
$ftpConnection = ftp_connect($ftpServer);
ftp_login($ftpConnection, $ftpUsername, $ftpPassword);

// 切换到备份文件目录
ftp_chdir($ftpConnection, $backupFolderPath);

// 打开备份文件
$backupFile = fopen($backupFilePath, 'w');

// 初始化Zip对象
$zip = new ZipArchive();

// 将需要备份的文件添加到Zip压缩包中
if ($zip->open($backupFilePath, ZipArchive::CREATE) === true) {
    $files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($sourceFolderPath));

    foreach ($files as $file) {
        if (!$file->isDir()) {
            $filePath = $file->getRealPath();
            $relativePath = substr($filePath, strlen($sourceFolderPath));
            $zip->addFile($filePath, $relativePath);
        }
    }

    $zip->close();
}

// 关闭备份文件
fclose($backupFile);

// 上传备份文件到FTP服务器
ftp_put($ftpConnection, $backupFileName, $backupFilePath, FTP_BINARY);

// 关闭FTP连接
ftp_close($ftpConnection);

echo '文件备份成功！';
?>

The above code first sets the FTP server information, the directory and file name of the backup file, and the files that need to be backed up. file path. Then establish an FTP connection and log in, switch to the backup file directory. Then create a backup file and use the ZipArchive class to add the files that need to be backed up to the compressed package. Finally close the backup file, upload the backup file to the FTP server, and close the FTP connection. After the backup is completed, a prompt indicating that the backup was successful is output.

You can save the above code as a php file, and then use a scheduled task or scheduled task to execute the file regularly to achieve the function of regularly backing up files to the FTP server.

Regularly backing up files on an FTP server through PHP is a simple and effective method that can ensure the security of files when unattended. I hope this article can be helpful to you, and you are welcome to modify and expand it according to your own needs. Good luck with your backup!

The above is the detailed content of How to schedule backup files on FTP server through PHP. For more information, please follow other related articles on the PHP Chinese website!