Are there any common reasons why the FTP server might block certain IPs or server names when using PHP?

The FTP server might block certain IPs or server names due to security measures or restrictions set by the server administrator. To resolve this issue, you can try connecting to the FTP server using a different IP address or server name that is not blocked. 

// Example code to connect to FTP server using a different IP address
$ftp_server = 'ftp.example.com';
$ftp_username = 'username';
$ftp_password = 'password';
$ftp_port = 21;

$ftp_connection = ftp_connect('new-ip-address', $ftp_port);
$login = ftp_login($ftp_connection, $ftp_username, $ftp_password);

if (!$ftp_connection || !$login) {
    echo 'FTP connection failed!';
} else {
    echo 'Connected to FTP server successfully!';
}

ftp_close($ftp_connection);

Keywords

FTP server block IP server name PHP

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