通过PHP连接到FTPS

Question

I am currently working on a project that involves connecting to the clients FTPS server and downloading a file that they are updating automatically with the data we require. I am wanting to access this server via PHP so I can automate it.

The issue that I have is that FTP_SSL_CONNECT will NOT work due to the client using Implicit TLS security on the server.

Does anyone have any experience of getting this connection working?

Thanks, T

$username = 'username here';
$password = 'password here';
$get_file = "file to get here";
//set ftps url
$url = "ftps urls here";
$local_prefix = 'local folder prefix here';
$location = "ftps://" . $username . ":" . $password . "@" . $url;
$port = "any port number here";
//********************************************************************//
//initialize cURL and begin
print("Initializing cURl and saving file from scure ftp.");
$curl = curl_init();
//create or open a file for writing
$file = fopen("$local_prefix$get_file", "w");
//set cURL options *note* these must occur in order for implicit ftp to work correctly
curl_setopt($curl, CURLOPT_URL, "$location$get_file");
curl_setopt($curl, CURLOPT_PORT, "$port");
curl_setopt($curl, CURLOPT_USERPWD, "$username:$password");
curl_setopt($curl, CURLOPT_FILE, $file);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($curl, CURLOPT_FTP_SSL, CURLFTPSSL_TRY);
curl_exec($curl) or die("did not save file");
curl_close ($curl);
fclose($file);

Answer 1

You need to add these option to curl call

CURLOPT_FTP_SSL        => CURLFTPSSL_ALL, // require SSL For both control and data      connections
CURLOPT_FTPSSLAUTH     => CURLFTPAUTH_DEFAULT, // let cURL choose the FTP authentication method (either SSL or TLS)