Question

之前可能已经问过这个问题，我是PHP的新手，我正尽力学习，但这真的让我感到高兴。

基本上我想知道的是，我如何使用PHP代码将其从远程服务器下载到本地位置。它正在下载所有不仅仅是我坚持的文件。那么请有人向我展示/解释我将如何做到这一点？

提前致谢。

到目前为止我得到了什么

<?php
$connection - ssh2_connect('example.com', 22);
ssh2_auth_password($connection, 'username', 'password');

$remote_dir="/remote_dir/";
$local_dir="/local_dir/";

$remote ="$remote_dir";
$stream = ssh2_exec($connection, $remote);
stream_set_blocking($stream,true);
$command=fread($stream,4096);

$array=explode(\n,$command);

$total_files=sizeof($array);

for($i=0;$i<$total_files;$i+++){
    $file_name=trim($array[$i]);
    if($file_name!=''{
        $remote_file=$remote_dir.$file_name;
        $local_file=$local_dir.$file_name;

        if(ssh2_scp_recv($connection, $remote_file,$local_file)){
            echo "File ".$file_name." was copied to $local_dir<br />"; 
        }
    }
}
fclose($stream);
?>

我认为我的$ remote =“$ remote_dir”;是错的，老实说，当我想要整个目录时，我有$ filename。这就是我到目前为止所做的一切。

Answer 1

这是一个关于如何读取文件夹并下载其所有文件的小代码：

<?php
$host = 'localhost';
$port = 22;
$username = 'username';
$password = 'password';
$remoteDir = '/must/be/the/complete/folder/path';
$localDir = '/can/be/the/relative/or/absolute/local/path';

if (!function_exists("ssh2_connect"))
    die('Function ssh2_connect not found, you cannot use ssh2 here');

if (!$connection = ssh2_connect($host, $port))
    die('Unable to connect');

if (!ssh2_auth_password($connection, $username, $password))
    die('Unable to authenticate.');

if (!$stream = ssh2_sftp($connection))
    die('Unable to create a stream.');

if (!$dir = opendir("ssh2.sftp://{$stream}{$remoteDir}"))
    die('Could not open the directory');

$files = array();
while (false !== ($file = readdir($dir)))
{
    if ($file == "." || $file == "..")
        continue;
    $files[] = $file;
}

foreach ($files as $file)
{
    echo "Copying file: $file\n";
    if (!$remote = @fopen("ssh2.sftp://{$stream}/{$remoteDir}{$file}", 'r'))
    {
        echo "Unable to open remote file: $file\n";
        continue;
    }

    if (!$local = @fopen($localDir . $file, 'w'))
    {
        echo "Unable to create local file: $file\n";
        continue;
    }

    $read = 0;
    $filesize = filesize("ssh2.sftp://{$stream}/{$remoteDir}{$file}");
    while ($read < $filesize && ($buffer = fread($remote, $filesize - $read)))
    {
        $read += strlen($buffer);
        if (fwrite($local, $buffer) === FALSE)
        {
            echo "Unable to write to local file: $file\n";
            break;
        }
    }
    fclose($local);
    fclose($remote);
}

您也可以将此代码恢复为（它不会复制目录）：

while (false !== ($file = readdir($dirHandle)))
{
    if ($file == "." || $file == "..")
        continue;

    echo "Copying file: $file\n";
    if(!ssh2_scp_recv($connection, $remoteDir . $file, $localDir . $file))
        echo "Could not download: ", $remoteDir, $file, "\n";
}

如果您不使用远程文件夹上的完整路径，它将无效：

opendir("ssh2.sftp://{$stream}{$remoteDir}")

Answer 2

更新：我很好地纠正了这不使用sftp，而是使用ftps。这是一个讨论using PHP to do SFTP的Stackoverflow链接。

PHP docs已涵盖了您应该需要的大部分内容。以下是获取远程目录中内容列表的示例：

<?php
// set up basic connection
$ftp_server = "example.com";
$conn_id = ftp_ssl_connect($ftp_server);

// login with username and password
$ftp_user_name = "myuser";
$ftp_user_pass = "mypass";
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
ftp_pasv($conn_id, true);
// check connection
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";
    }

$buff = ftp_rawlist($conn_id, '.');
 var_dump($buff);
ftp_close($conn_id); 
?>

Answer 3

在这里，您将找到有关使用PHP进行SFTP的所有示例。 http://phpseclib.sourceforge.net/sftp/examples.html

<?php
   include('Net/SFTP.php');

   $sftp = new Net_SFTP('www.domain.tld');
   if (!$sftp->login('username', 'password')) {
       exit('Login Failed');
   }

   // outputs the contents of filename.remote to the screen
   echo $sftp->get('filename.remote');
   // copies filename.remote to filename.local from the SFTP server
   $sftp->get('filename.remote', 'filename.local');
?>

PHP通过sftp从远程服务器下载

3 个答案: