php file_get_contents from ftp

gistfile1.php

<?php
$a = tmpfile();
$metaData = stream_get_meta_data($a);

$ftp = ftp_connect('localhost', 21, 30);
ftp_login($ftp, 'zital', 'zital');

ftp_fget($ftp, $a, 'a.txt', FTP_BINARY, 0);
fseek($a, 0);

$content = fread($a, filesize($metaData['uri']));
fclose($a);

echo $content;