What are the recommended steps for troubleshooting FTP errors in PHP scripts?

When troubleshooting FTP errors in PHP scripts, the first step is to check for any syntax errors in your FTP connection code. Next, ensure that the FTP server settings are correct, including the host, username, password, and port number. You should also verify that the necessary permissions are set correctly on the server. Finally, use error handling techniques such as try-catch blocks to capture and handle any FTP-related errors that may occur during the script execution.

// Example PHP code snippet for troubleshooting FTP errors
$ftp_server = 'ftp.example.com';
$ftp_user = 'username';
$ftp_pass = 'password';

// Connect to FTP server
$ftp_conn = ftp_connect($ftp_server) or die("Could not connect to $ftp_server");

// Login to FTP server
if (@ftp_login($ftp_conn, $ftp_user, $ftp_pass)) {
    echo "Connected to $ftp_server";
} else {
    echo "Could not login to $ftp_server";
}

// Close FTP connection
ftp_close($ftp_conn);