my_proxy_file.php

<?php
/*
###################  READ ME  #################################
You must create a proxy file that retrieves your import file from FTP and then returns it.
You will then call that file with the 'Download from URL' option in WP All Import.
This is an example of such a proxy file.  This is provided in the hopes it is useful, but without any support.  
###############################################################
Instructions:
* Copy the code below to a new php file in the root of your WP site
* Update the FTP server details
* Update the $local_file variable (may need to change .csv to .xml)
* Update the $server_file (path and may need to change .csv to .xml)
* Call the new PHP file when using Download from URL: http://example.com/my_proxy_file.php
###############################################################
*/
$ftp = array(
	'server' => 'ftp.example.com',
	'user' => 'yourusername',
	'pass' => 'yourpassword'
);

// Connect
$ftp_connection = ftp_connect( $ftp['server'] ) or die( 'Could not connect to $ftp[$server]' );

// Set passive mode
ftp_pasv( $ftp_connection, false );

if ( $login = ftp_login( $ftp_connection, $ftp['user'], $ftp['pass'] ) ) {

	// Login passed
	
	// Download data to this file.
	$local_file = 'datafeed.csv.';

	// Path and filename to open and read from.
	$server_file = 'public_html/ftpfiles/data-example-2.csv';

	// Download File
	if ( $file = ftp_get( $ftp_connection, $local_file, $server_file, FTP_ASCII ) ) {

		$handle = fopen( $local_file, "r" ) or die( "Couldn't get handle" );

		if ( $handle ) {

		    while ( !feof( $handle ) ) {

		    	// Output data.
		        $buffer = fgets( $handle, 4096 );
		        echo $buffer;

		    }

		    fclose( $handle );

		} else {

			// $handle failed
			echo "Failed to get handle.";

		}

	} else {

		// ftp_get failed
		echo "Failed to download file.";

	}

} else {

	// Login failed
	echo "Failed to log in.";

}

// Disconnect
ftp_close( $ftp_connection );
?>