FTP连接

<?php
$ftp_server = "localhost";
$conn_id = ftp_connect($ftp_server) or die("Couldn't connect to $ftp_server");
?>
我用上面的代碼,沒有等到出錯.我本機沒有安裝FTP服務.
改爲如下代碼,10秒後輸入:Couldn't connect to localhost
$ftp_server = "localhost";
$conn_id = @ftp_connect($ftp_server,21,10) or die ("couldn't connect to $ftp_server /n/<br/>");
echo("connect to $ftp_server succeed/n<br>");

我测试过,连接远程FTP正常.