Warning: ftp_put(): Starting data transfer [duplicate] - php

Question

I upload XML file through FTP:
$ftp = "ftp";
$username = "username";
$pwd = "password";
$filename = $_FILES[$xyz][$abc];
$tmp = $_FILES['file']['tmp_name'];
$destination = "/Content/EnquiryXML ";
$connect = ftp_connect($ftp)or die("Unable to connect to host");
ftp_login($connect,$username,$pwd)or die("Authorization Failed");
echo "Connected!<br/>";
if(!$filename)
{
echo"Please select a file";
}
else
{
ftp_put($connect,$destination.'/'.$filename,$tmp,FTP_ASCII)or die("Unable to upload");
echo"File successfully uploaded to FTP";
}
I want to send the XML file created using DOMDocument to a FTP server but I am not able.
The ftp_put returns false.

Answer 1

Most typical cause of problems with ftp_put (or any other transfer command like ftp_get, ftp_nlist, ftp_rawlist, ftp_mlsd) is that PHP defaults to the active mode. And in 99% cases, one has to switch to the passive mode, to make the transfer working. Use the ftp_pasv function.
$connect = ftp_connect($ftp) or die("Unable to connect to host");
ftp_login($connect, $username, $pwd) or die("Authorization failed");
// turn passive mode on
ftp_pasv($connect, true) or die("Unable switch to passive mode");
The ftp_pasv must be called after ftp_login. Calling it before has no effect.
See also:
PHP ftp_put fails with "Warning: ftp_put (): PORT command successful"
my article on the active and passive FTP connection modes.
Further, if your FTP server is reporting an incorrect IP address in the response to the PASV command (what is quite common, if the server is behind firewall/NAT), you might need to workaround it by using:
ftp_set_option($connect, FTP_USEPASVADDRESS, false);
See PHP FTP + Passive FTP Server Behind NAT.
Though the right solution in this case, is to get the server fixed.

Answer 2

This worked:
// connect and login to FTP server
$ftp_server = "host";
$ftp_username = "username";
$ftp_userpass = "password";
$ftp_conn = ftp_connect($ftp_server) or die("Could not connect to $ftp_server");
$login = ftp_login($ftp_conn, $ftp_username, $ftp_userpass);
$file ="$abc";
// upload file
if (ftp_put($ftp_conn, "/$abc" , $file, FTP_ASCII)){
echo "Successfully uploaded $file.";
} else {
echo "Error uploading $file";
}
// close connection
ftp_close($ftp_conn);