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<?php
//参考 说明 :http://www.nusphere.com/kb/phpmanual/function.ftp-nb-get.htm
<?php
$config = array(
'hostname' => '',
'username' => '',
'password' => '',
'port' => 21,
);
$ftp = new Ftp();
//本地目录
$local_dir = '/apps/';
//远程目录
$remote_dir = './';
$ftp->connect($config);
$list = $ftp->filelist($remote_dir);
var_dump($list);
//先取出本地目录的所有文件,然后用本地目录跟远程目录文件做对比,有文件名一样的不做处理
if (!empty($list)){
set_time_limit(0);
foreach ($list as $k => $v) {
$files = basename($v);
$old_files = my_scandir($local_dir);
// var_dump($old_files);
echo $v . '---------'.$local_dir.'/'.$files."\r\n";
if (in_array($files, $old_files)){
echo 'ok!!!!';
echo $v . '---------'.$local_dir.'/'.$files."\r\n";
} else{
$ftp->down_nb_get($local_dir.'/'.$files , $v );
}
}
}
$ftp->close();
// $ftp->upload('ftp_err.log','ftp_upload.log');
// $ftp->download('ftp_upload.log','ftp_download.log');
function down($one,$two,$config){
$newftp = new Ftp();
$newftp->connect($config);
$re = $newftp->download($one,$two);
$newftp->close();
}
function my_scandir($dir)
{
if(is_dir($dir)){
$files = array();
$child_dirs = scandir($dir);
foreach($child_dirs as $child_dir){
//'.'和'..'是Linux系统中的当前目录和上一级目录,必须排除掉,
//否则会进入死循环,报segmentation falt 错误
if($child_dir != '.' && $child_dir != '..'){
if(is_dir($dir.'/'.$child_dir)){
$files[$child_dir] = my_scandir($dir.'/'.$child_dir);
}else{
$files[] = $child_dir;
}
}
}
return $files;
}else{
return $dir;
}
}
/**
* 仿写CodeIgniter的FTP类
* FTP基本操作:
* 1) 登陆; connect
* 2) 当前目录文件列表; filelist
* 3) 目录改变; chgdir
* 4) 重命名/移动; rename
* 5) 创建文件夹; mkdir
* 6) 删除; delete_dir/delete_file
* 7) 上传; upload
* 8) 下载 download
*
* @author quanshuidingdang
*/
class Ftp {
private $hostname = '';
private $username = '';
private $password = '';
private $port = 21;
private $passive = TRUE;
private $debug = TRUE;
public $conn_id = FALSE;
/**
* 构造函数
*
* @param array 配置数组 : $config = array('hostname'=>'','username'=>'','password'=>'','port'=>''...);
*/
public function __construct($config = array()) {
if(count($config) > 0) {
$this->_init($config);
}
}
/**
* FTP连接
*
* @access public
* @param array 配置数组
* @return boolean
*/
public function connect($config = array()) {
if(count($config) > 0) {
$this->_init($config);
}
if(FALSE === ($this->conn_id = @ftp_connect($this->hostname,$this->port))) {
if($this->debug === TRUE) {
$this->_error("ftp_unable_to_connect");
}
return FALSE;
}
if( ! $this->_login()) {
if($this->debug === TRUE) {
$this->_error("ftp_unable_to_login");
}
return FALSE;
}
if($this->passive === TRUE) {
ftp_pasv($this->conn_id, TRUE);
}
return TRUE;
}
/**
* 目录改变
*
* @access public
* @param string 目录标识(ftp)
* @param boolean
* @return boolean
*/
public function chgdir($path = '', $supress_debug = FALSE) {
if($path == '' OR ! $this->_isconn()) {
return FALSE;
}
$result = @ftp_chdir($this->conn_id, $path);
if($result === FALSE) {
if($this->debug === TRUE AND $supress_debug == FALSE) {
$this->_error("ftp_unable_to_chgdir:dir[".$path."]");
}
return FALSE;
}
return TRUE;
}
/**
* 目录生成
*
* @access public
* @param string 目录标识(ftp)
* @param int 文件权限列表
* @return boolean
*/
public function mkdir($path = '', $permissions = NULL) {
if($path == '' OR ! $this->_isconn()) {
return FALSE;
}
$result = @ftp_mkdir($this->conn_id, $path);
if($result === FALSE) {
if($this->debug === TRUE) {
$this->_error("ftp_unable_to_mkdir:dir[".$path."]");
}
return FALSE;
}
if( ! is_null($permissions)) {
$this->chmod($path,(int)$permissions);
}
return TRUE;
}
/**
* 上传
*
* @access public
* @param string 本地目录标识
* @param string 远程目录标识(ftp)
* @param string 上传模式 auto || ascii
* @param int 上传后的文件权限列表
* @return boolean
*/
public function upload($localpath, $remotepath, $mode = 'auto', $permissions = NULL) {
if( ! $this->_isconn()) {
return FALSE;
}
if( ! file_exists($localpath)) {
if($this->debug === TRUE) {
$this->_error("ftp_no_source_file:".$localpath);
}
return FALSE;
}
if($mode == 'auto') {
$ext = $this->_getext($localpath);
$mode = $this->_settype($ext);
}
$mode = ($mode == 'ascii') ? FTP_ASCII : FTP_BINARY;
$result = @ftp_put($this->conn_id, $remotepath, $localpath, $mode);
if($result === FALSE) {
if($this->debug === TRUE) {
$this->_error("ftp_unable_to_upload:localpath[".$localpath."]/remotepath[".$remotepath."]");
}
return FALSE;
}
if( ! is_null($permissions)) {
$this->chmod($remotepath,(int)$permissions);
}
return TRUE;
}
/**
* 下载
*
* @access public
* @param string 远程目录标识(ftp)
* @param string 本地目录标识
* @param string 下载模式 auto || ascii
* @return boolean
*/
public function download($remotepath, $localpath, $mode = 'auto') {
if( ! $this->_isconn()) {
return FALSE;
}
if($mode == 'auto') {
$ext = $this->_getext($remotepath);
$mode = $this->_settype($ext);
}
$mode = ($mode == 'ascii') ? FTP_ASCII : FTP_BINARY;
$result = @ftp_get($this->conn_id, $localpath, $remotepath, $mode);
if($result === FALSE) {
if($this->debug === TRUE) {
$this->_error("ftp_unable_to_download:localpath[".$localpath."]-remotepath[".$remotepath."]");
}
return FALSE;
}
return TRUE;
}
public function down_nb_get($remotepath, $localpath,$mode = 'auto'){
if( ! $this->_isconn()) {
return FALSE;
}
if($mode == 'auto') {
$ext = $this->_getext($remotepath);
$mode = $this->_settype($ext);
}
$mode = ($mode == 'ascii') ? FTP_ASCII : FTP_BINARY;
$ret = @ftp_nb_get($this->conn_id, $remotepath, $localpath, $mode);
while ($ret == FTP_MOREDATA) {
// Do whatever you want
// Continue downloading...
$ret = ftp_nb_continue($this->conn_id);
}
if ($ret != FTP_FINISHED) {
echo "There was an error downloading the file...";
return false;
} else{
return true;
}
}
/**
* 重命名/移动
*
* @access public
* @param string 远程目录标识(ftp)
* @param string 新目录标识
* @param boolean 判断是重命名(FALSE)还是移动(TRUE)
* @return boolean
*/
public function rename($oldname, $newname, $move = FALSE) {
if( ! $this->_isconn()) {
return FALSE;
}
$result = @ftp_rename($this->conn_id, $oldname, $newname);
if($result === FALSE) {
if($this->debug === TRUE) {
$msg = ($move == FALSE) ? "ftp_unable_to_rename" : "ftp_unable_to_move";
$this->_error($msg);
}
return FALSE;
}
return TRUE;
}
/**
* 删除文件
*
* @access public
* @param string 文件标识(ftp)
* @return boolean
*/
public function delete_file($file) {
if( ! $this->_isconn()) {
return FALSE;
}
$result = @ftp_delete($this->conn_id, $file);
if($result === FALSE) {
if($this->debug === TRUE) {
$this->_error("ftp_unable_to_delete_file:file[".$file."]");
}
return FALSE;
}
return TRUE;
}
/**
* 删除文件夹
*
* @access public
* @param string 目录标识(ftp)
* @return boolean
*/
public function delete_dir($path) {
if( ! $this->_isconn()) {
return FALSE;
}
//对目录宏的'/'字符添加反斜杠'\'
$path = preg_replace("/(.+?)\/*$/", "\\1/", $path);
//获取目录文件列表
$filelist = $this->filelist($path);
if($filelist !== FALSE AND count($filelist) > 0) {
foreach($filelist as $item) {
//如果我们无法删除,那么就可能是一个文件夹
//所以我们递归调用delete_dir()
if( ! @delete_file($item)) {
$this->delete_dir($item);
}
}
}
//删除文件夹(空文件夹)
$result = @ftp_rmdir($this->conn_id, $path);
if($result === FALSE) {
if($this->debug === TRUE) {
$this->_error("ftp_unable_to_delete_dir:dir[".$path."]");
}
return FALSE;
}
return TRUE;
}
/**
* 修改文件权限
*
* @access public
* @param string 目录标识(ftp)
* @return boolean
*/
public function chmod($path, $perm) {
if( ! $this->_isconn()) {
return FALSE;
}
//只有在PHP5中才定义了修改权限的函数(ftp)
if( ! function_exists('ftp_chmod')) {
if($this->debug === TRUE) {
$this->_error("ftp_unable_to_chmod(function)");
}
return FALSE;
}
$result = @ftp_chmod($this->conn_id, $perm, $path);
if($result === FALSE) {
if($this->debug === TRUE) {
$this->_error("ftp_unable_to_chmod:path[".$path."]-chmod[".$perm."]");
}
return FALSE;
}
return TRUE;
}
/**
* 获取目录文件列表
*
* @access public
* @param string 目录标识(ftp)
* @return array
*/
public function filelist($path = '.') {
if( ! $this->_isconn()) {
return FALSE;
}
return ftp_nlist($this->conn_id, $path);
}
/**
* 关闭FTP
*
* @access public
* @return boolean
*/
public function close() {
if( ! $this->_isconn()) {
return FALSE;
}
return @ftp_close($this->conn_id);
}
/**
* FTP成员变量初始化
*
* @access private
* @param array 配置数组
* @return void
*/
private function _init($config = array()) {
foreach($config as $key => $val) {
if(isset($this->$key)) {
$this->$key = $val;
}
}
//特殊字符过滤
$this->hostname = preg_replace('|.+?://|','',$this->hostname);
}
/**
* FTP登陆
*
* @access private
* @return boolean
*/
private function _login() {
return @ftp_login($this->conn_id, $this->username, $this->password);
}
/**
* 判断con_id
*
* @access private
* @return boolean
*/
private function _isconn() {
if( ! is_resource($this->conn_id)) {
if($this->debug === TRUE) {
$this->_error("ftp_no_connection");
}
return FALSE;
}
return TRUE;
}
/**
* 从文件名中获取后缀扩展
*
* @access private
* @param string 目录标识
* @return string
*/
private function _getext($filename) {
if(FALSE === strpos($filename, '.')) {
return 'txt';
}
$extarr = explode('.', $filename);
return end($extarr);
}
/**
* 从后缀扩展定义FTP传输模式 ascii 或 binary
*
* @access private
* @param string 后缀扩展
* @return string
*/
private function _settype($ext) {
$text_type = array (
'txt',
'text',
'php',
'phps',
'php4',
'js',
'css',
'htm',
'html',
'phtml',
'shtml',
'log',
'xml'
);
return (in_array($ext, $text_type)) ? 'ascii' : 'binary';
}
/**
* 错误日志记录
*
* @access prvate
* @return boolean
*/
private function _error($msg) {
return @file_put_contents('ftp_err.log', "date[".date("Y-m-d H:i:s")."]-hostname[".$this->hostname."]-username[".$this->username."]-password[".$this->password."]-msg[".$msg."]\n", FILE_APPEND);
}
}