ftp php代码查找

<?php
// 连接到FTP服务器
$conn_id = ftp_connect("ftp.example.com");

// 登录
$login_result = ftp_login($conn_id, "username", "password");

if ((!$conn_id) || (!$login_result)) {
    echo "FTP connection has failed!";
    echo "Attempted to connect to $ftp_server for user $ftp_user_name";
    exit;
} else {
    echo "Connected to $ftp_server, for user $ftp_user_name";
}

// 切换到远程目录
ftp_chdir($conn_id, "/public_html/");

// 下载文件
$local_file = 'local-file.txt';
$remote_file = 'remote-file.txt';
$result = ftp_get($conn_id, $local_file, $remote_file, FTP_BINARY);

if (!$result) {
    echo "Couldn't get $remote_file";
} else {
    echo "Downloaded $remote_file to $local_file";
}

// 关闭连接
ftp_close($conn_id);
?>