我想将文件上传到多个FTP。但它显示错误：
ftp_put() [function.ftp-put]: php_connect_nonb() failed: Operation now in progress (115)。
查看我的代码
foreach ($channel_details as $channel_list)
{
if(isset($connection))
unset($connection);
if(isset($login))
unset($login);
if(isset($upload))
unset($upload);
$server = $channel_list['channel'];
$ftp_user_name = $channel_list['username'];
$ftp_user_pass = $channel_list['password'];
$source='file_push.html';
$dest='/public_html/'.$path.$file;
$connection = ftp_connect($server) or die("Couldn't connect to ftp server");
$login = ftp_login($connection, $ftp_user_name, $ftp_user_pass);
// turn passive mode on
ftp_pasv($connection, true);
if (!$connection || !$login) { die('Connection attempt failed!'); }
$upload = ftp_put($connection, $dest, $source, FTP_ASCII);
if (!$upload) { echo 'FTP upload failed!'; }
ftp_close($connection);
}