What are the potential challenges of transferring a protected text file from one server to another for database integration in PHP?

One potential challenge of transferring a protected text file from one server to another for database integration in PHP is ensuring secure transmission to protect sensitive data. To solve this, you can use secure file transfer protocols like SFTP or HTTPS to encrypt the data during transmission. 

// Example code using SFTP to transfer a protected text file from one server to another

$localFile = '/path/to/local/file.txt';
$remoteFile = '/path/to/remote/file.txt';

$connection = ssh2_connect('remote.server.com', 22);
ssh2_auth_password($connection, 'username', 'password');

ssh2_scp_send($connection, $localFile, $remoteFile, 0644);

Keywords

file transfer server integration database PHP encryption

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