php 使用PHP通过FTP下载文件夹
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Downloading a folder through with FTP using PHP
提问by Damiano
How can i donwload a folder from a remote host using FTP And PHP?
如何使用 FTP 和 PHP 从远程主机下载文件夹？
I have username and password and the folder to donwload...
我有用户名和密码以及要下载的文件夹...
copy()?
复制（）？
Let me know, thanks!
让我知道，谢谢！
回答by hectorct
<?php
$ftp_server = "ftp.example.com";
$conn_id = ftp_connect ($ftp_server)
or die("Couldn't connect to $ftp_server");
$login_result = ftp_login($conn_id, "user", "pass");
if ((!$conn_id) || (!$login_result))
die("FTP Connection Failed");
ftp_sync ("DirectoryToCopy"); // Use "." if you are in the current directory
ftp_close($conn_id);
// ftp_sync - Copy directory and file structure
function ftp_sync ($dir) {
global $conn_id;
if ($dir != ".") {
if (ftp_chdir($conn_id, $dir) == false) {
echo ("Change Dir Failed: $dir<BR>\r\n");
return;
}
if (!(is_dir($dir)))
mkdir($dir);
chdir ($dir);
}
$contents = ftp_nlist($conn_id, ".");
foreach ($contents as $file) {
if ($file == '.' || $file == '..')
continue;
if (@ftp_chdir($conn_id, $file)) {
ftp_chdir ($conn_id, "..");
ftp_sync ($file);
}
else
ftp_get($conn_id, $file, $file, FTP_BINARY);
}
ftp_chdir ($conn_id, "..");
chdir ("..");
}
?>
Source: http://www.php.net/manual/es/function.ftp-get.php#90910
回答by NickSoft
You have these choises:
你有这些选择：
ftp wrapper:
$handle = opendir('ftp://user:password@host/path/to/dir') || die(); while (false !== ($file = readdir($handle))) { if(is_file($file)){ $c = file_get_contents($file); file_put_contents('/local/'.basename($file), $c); } } closedir($handle);using ftp extension of php
$c = ftp_connect('host.com'); ftp_login($c, 'file', 'password'); ftp_chdir($c, '/remote/dir'); $contents = ftp_nlist($c, '-la .'); foreach($contents as $line){ $file = preg_split('@\s+@', trim($line)); $name = $file[8]; $size = $file[4]; $mode = $file[0]; if(substr($mode, 0, 1) == '-'){ //file $fd = fopen('/local/path/'.$name, 'w'); ftp_fget ($c, $fd, $name, FTP_BINARY); fclose($fd); }else{ //dir } }use external program like wget or lftp
- wget --recursive [options] ftp://user:password@host/# see wget --help
lftp -c commands.txt # where commands.txt would be something like:
connect user:[email protected] mget /path/to/remote /path/to/local
ftp 包装器：
$handle = opendir('ftp://user:password@host/path/to/dir') || die(); while (false !== ($file = readdir($handle))) { if(is_file($file)){ $c = file_get_contents($file); file_put_contents('/local/'.basename($file), $c); } } closedir($handle);使用 php 的 ftp 扩展
$c = ftp_connect('host.com'); ftp_login($c, 'file', 'password'); ftp_chdir($c, '/remote/dir'); $contents = ftp_nlist($c, '-la .'); foreach($contents as $line){ $file = preg_split('@\s+@', trim($line)); $name = $file[8]; $size = $file[4]; $mode = $file[0]; if(substr($mode, 0, 1) == '-'){ //file $fd = fopen('/local/path/'.$name, 'w'); ftp_fget ($c, $fd, $name, FTP_BINARY); fclose($fd); }else{ //dir } }使用外部程序，如 wget 或 lftp
- wget --recursive [options] ftp://user:password@host/# 见 wget --help
lftp -c commands.txt # 其中 commands.txt 将类似于：
connect user:[email protected] mget /path/to/remote /path/to/local
回答by hugsbrugs
I've just released two new libraries to do such things in FTPand SFTP.
Recursively copy files and folders on remote SFTP server (If local_path ends with a slash upload folder content otherwise upload folder itself)
递归复制远程 SFTP 服务器上的文件和文件夹（如果 local_path 以斜杠结尾，则上传文件夹内容，否则上传文件夹本身）
Ftp::upload_dir($server, $user, $password, $local_path, $remote_path, $port = 22);
Download a directory from remote FTP server (If remote_dir ends with a slash download folder content otherwise download folder itself)
从远程 FTP 服务器下载目录（如果 remote_dir 以斜杠结尾，则下载文件夹内容，否则下载文件夹本身）
Ftp::download_dir($server, $user, $password, $remote_dir, $local_dir, $port = 22);
For the code here it is but you will need the entire class for small utilities functions dependencies.
对于此处的代码，您将需要整个类来获取小型实用程序函数依赖项。
/**
* Download a directory from remote FTP server
*
* If remote_dir ends with a slash download folder content
* otherwise download folder itself
*
* @param string $server
* @param string $user
* @param string $password
* @param string $remote_dir
* @param string $local_dir
* @param int $port
*
* @return bool $downloaded
*
*/
public static function download_dir($server, $user, $password, $remote_dir, $local_dir, $port = 21)
{
$downloaded = false;
try
{
if(is_dir($local_dir) && is_writable($local_dir))
{
if(false !== $cid = Ftp::login($server, $user, $password, $port))
{
# If remote_dir do not ends with /
if(!HString::ends_with($remote_dir, '/'))
{
# Create fisrt level directory on local filesystem
$local_dir = rtrim($local_dir, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR . basename($remote_dir);
mkdir($local_dir);
}
# Remove trailing slash
$local_dir = rtrim($local_dir, DIRECTORY_SEPARATOR);
$downloaded = Ftp::download_all($cid, $remote_dir, $local_dir);
ftp_close($cid);
}
}
else
{
throw new Exception("Local directory does not exist or is not writable", 1);
}
}
catch(Exception $e)
{
error_log("Ftp::download_dir : " . $e->getMessage());
}
return $downloaded;
}
/**
* Recursive function to download remote files
*
* @param ressource $cid
* @param string $remote_dir
* @param string $local_dir
*
* @return bool $download_all
*
*/
private static function download_all($cid, $remote_dir, $local_dir)
{
$download_all = false;
try
{
if(Ftp::is_dir($remote_dir, $cid))
{
$files = ftp_nlist($cid, $remote_dir);
if($files!==false)
{
$to_download = 0;
$downloaded = 0;
# do this for each file in the remote directory
foreach ($files as $file)
{
# To prevent an infinite loop
if ($file != "." && $file != "..")
{
$to_download++;
# do the following if it is a directory
if (Ftp::is_dir($file, $cid))// $remote_dir . DIRECTORY_SEPARATOR .
{
# Create directory on local filesystem
mkdir($local_dir . DIRECTORY_SEPARATOR . basename($file));
# Recursive part
if(Ftp::download_all($cid, $file, $local_dir . DIRECTORY_SEPARATOR . basename($file)))
{
$downloaded++;
}
}
else
{
# Download files
if(ftp_get($cid, $local_dir . DIRECTORY_SEPARATOR . basename($file), $file, FTP_BINARY))
{
$downloaded++;
}
}
}
}
# Check all files and folders have been downloaded
if($to_download===$downloaded)
{
$download_all = true;
}
}
}
}
catch(Exception $e)
{
error_log("Ftp::download_all : " . $e->getMessage());
}
return $download_all;
}
回答by magma
You can use the FTP functions in PHP:
您可以在 PHP 中使用 FTP 函数：
http://www.php.net/manual/en/ref.ftp.php
http://www.php.net/manual/en/ref.ftp.php
EDIT:
编辑：
