ftp_systype

(PHP 3 >= 3.0.13, PHP 4, PHP 5)

ftp_systype -- 返回远程 FTP 服务器的系统类型

说明

string ftp_systype ( resource ftp_stream )

返回远程服务器的系统类型,发生错误则返回 FALSE

例子 1. ftp_systype() 例子

<?php
// ftp connection
$ftp = ftp_connect('ftp.keliglia.com');
ftp_login($ftp, 'user', 'password');

// get the system type
if ($type = ftp_systype($ftp)) {
    echo
"Keliglia is powered by $type\n";
} else {
    echo
"Couldn't get the systype";
}
?>

本例将述出:

Keliglia is powered by UNIX


add a note add a note User Contributed Notes
Buckwheat469 at hotmail dot com
27-Jul-2006 12:41
ftp_systype can be a good way of checking the state of a connection, since PHP doesn't have a better system to check the state of an ftp connection (is_connected would be nice).

if (!($type = ftp_systype($conn_id))) {
   echo "FTP connection has failed! Trying again.\n";
   $conn_id = ftp_connect($ftp_server);
   $login_result = ftp_login($conn_id, $ftp_user, $ftp_pass);
}