Are there any best practices for handling text files on a remote server in PHP without direct access to the file creation process?

When handling text files on a remote server in PHP without direct access to the file creation process, one best practice is to use secure methods of file transfer such as SFTP or SSH. Additionally, it's important to sanitize user input and validate file paths to prevent any potential security vulnerabilities. Lastly, consider implementing error handling and logging to track any issues that may arise during file operations.

// Example of securely handling text files on a remote server in PHP

// Connect to remote server using SFTP
$connection = ssh2_connect('remote.server.com', 22);
ssh2_auth_password($connection, 'username', 'password');

// Download remote file
$remoteFilePath = '/path/to/remote/file.txt';
$localFilePath = '/path/to/local/file.txt';
ssh2_scp_recv($connection, $remoteFilePath, $localFilePath);

// Read file contents
$fileContents = file_get_contents($localFilePath);

// Process file contents
// ...

// Upload modified file back to remote server
ssh2_scp_send($connection, $localFilePath, $remoteFilePath);