文字
ftp_systype
(PHP 4, PHP 5, PHP 7)
ftp_systype — 返回远程 FTP 服务器的操作系统类型
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 。
参数
-
ftp_stream -
FTP 连接资源。
返回值
返回远程服务器类型，失败返回 FALSE 。
范例
Example #1 ftp_systype() 例子
<?php
// ftp connection
$ftp = ftp_connect ( 'ftp.example.com' );
ftp_login ( $ftp , 'user' , 'password' );
// get the system type
if ( $type = ftp_systype ( $ftp )) {
echo "Example.com is powered by $type \n" ;
} else {
echo "Couldn't get the systype" ;
}
?> 以上例程的输出类似于：
Example.com is powerd by UNIX
用户评论:
[#1] Buckwheat469 at hotmail dot com [2006-07-26 09:41:47]
ftp_systype can be a good way of checking the state of a connection, since PHP doesn't have a better system to check the state of an ftp connection (is_connected would be nice).
if (!($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);
}