Are there any specific considerations or limitations when using FTP functions in PHP for file transfers?

When using FTP functions in PHP for file transfers, it is important to consider security implications such as storing sensitive credentials securely and validating user input to prevent injection attacks. Additionally, it is recommended to use passive mode for FTP connections to avoid potential firewall issues. 

// Example of using FTP functions in PHP with secure credential storage and passive mode

$ftp_server = 'ftp.example.com';
$ftp_user = 'username';
$ftp_pass = 'password';

// Connect to FTP server using secure credential storage
$conn_id = ftp_connect($ftp_server);
$login_result = ftp_login($conn_id, $ftp_user, $ftp_pass);

// Use passive mode for FTP connection
ftp_pasv($conn_id, true);

// Perform file transfer operations here

// Close FTP connection
ftp_close($conn_id);

Keywords

FTP functions PHP file transfers considerations limitations

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