ftp_cdup
ftp_cdup
(PHP 4, PHP 5, PHP 7)
ftp_cdup - 更改父目录
描述
bool ftp_cdup ( resource $ftp_stream )
对父目录的更改。
参数
ftp_stream
FTP连接的链接标识符。
返回值
成功时返回TRUE
或失败时返回FALSE
。
例子
示例#1 ftp_cdup()示例
<?php
// set up basic connection
$conn_id = ftp_connect($ftp_server
// login with username and password
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass
// change the current directory to html
ftp_chdir($conn_id, 'html'
echo ftp_pwd($conn_id // /html
// return to the parent directory
if (ftp_cdup($conn_id)) {
echo "cdup successful\n";
} else {
echo "cdup not successful\n";
}
echo ftp_pwd($conn_id // /
ftp_close($conn_id
?>