PHP uses the ftp_connect function to implement file upload and download functions

本篇文章主要介绍PHP利用ftp_connect函数实现文件上传下载功能，感兴趣的朋友参考下，希望对大家有所帮助。

大概原理

遍历项目中的所有非排除文件，然后获取 文件修改时间晚于文件上一次修改时间 的文件

然后将这些文件，通过ftp上传到对应的目录

具体代码如下:

因为只是工具，代码很乱，见谅

<?php
error_reporting(7);
if ($_SERVER[&#39;SERVER_ADDR&#39;])exit;//禁止在web服务器下运行
$_GET[&#39;exclude&#39;] = array(&#39;number.txt&#39;,&#39;uploads&#39;,&#39;Zend&#39;,&#39;docs&#39;,&#39;cache&#39;,&#39;You&#39;,&#39;managesdk&#39;); //排除上传目录,定义为全局变量
$fileobj = new FilerFile();
$path = "/data/longtu/"; //项目目录的根目录
$files = $fileobj->Zip($path); //过滤出最新的修改文件
$path = str_replace("/data/longtu/","",$path);
$config = array(
  &#39;hostname&#39; => &#39;xxx.xxx.xx.xxx&#39;, //ftp服务器 地址
  &#39;username&#39; => &#39;xxx&#39;,     //ftp用户
  &#39;password&#39; => &#39;?xxxxxxxxxxx&#39;, //ftp密码
  &#39;port&#39; => 21         //端口
);
$ftp = new Ftp();
$ftp->connect($config);       //链接服务器
//$a=$ftp->filelist();
$LOCAL_ROOT = realpath(dirname(__DIR__)."/../../");
chdir($LOCAL_ROOT);
foreach ($files as $k=>$v){
  $f = $path.$v;
  $tmp = $ftp->upload($f, $f);
  if($tmp){
  echo "upload $f -> success \n";
  }
}
//$ftp->download(&#39;ftp_upload.log&#39;,&#39;ftp_download.log&#39;);
//
//$ftp->upload(&#39;ftp_err.log&#39;,&#39;ftp_upload.log&#39;);
//$ftp->download(&#39;ftp_upload.log&#39;,&#39;ftp_download.log&#39;);
/*
 *
 *
 * $dir = "/test";
 if(@ftp_chdir($conn, $dir))
  判断是否为文件夹
 * Enter description here ...
 * @author Administrator
 *
 */
class FilerFile
{
 var $time_path;
 private $fctimes = array();
 function Zip($dir)
 {
  $this->time_path = rtrim($dir,"/")."/.~~~time.php";
  //@unlink($this->time_path);
  $filelist = $this -> GetFileList($dir);
  file_put_contents($this->time_path,"<?php \n return ".var_export($this->fctimes,true).";");
  return $filelist;
 }
 function appendFilectime($file)
 {
  $time_file_path = $this->time_path;
  $ftime = @include($time_file_path);
  $ftime = $ftime ? $ftime : array();
  $time = filectime($file);
  if(!file_exists($time_file_path))file_put_contents($time_file_path,"<?php \n");
 }
 function getFileByFilectime($file)
 {
  static $time_data ;
  $time_file_path = $this->time_path;
  if (!$time_data){
   $time_data= @include_once($time_file_path);
  }
  $time_data = $time_data ? $time_data : array();
  //var_dump($file,$time_data[$file] == filectime($file));
  //echo $file."\t".$time_data[$file]."\n";
  if ($time_data[$file] == filemtime($file)){
   return false;
  }else{
   return $file;
  }
 }
 function GetFileList($dir,$path="")
 {
  static $tmpp = "";
  if ($path=="" && !$tmpp){
   $tmpp = $dir;
  }
  $d = dir($dir);
  $files = array();
  if ($d)
  {
   $pathP=str_replace($tmpp,"",$dir);
   $pathP=str_replace(array("\\\\","/"),DIRECTORY_SEPARATOR,$pathP);
   $pathP=str_replace(DIRECTORY_SEPARATOR.DIRECTORY_SEPARATOR,DIRECTORY_SEPARATOR,$pathP);
   while($f = $d->read())
   {
    if ($f == &#39;.&#39; || $f==&#39;..&#39; || $f{0}==&#39;.&#39; || $f==&#39;Zend&#39; || in_array($f, $_GET[&#39;exclude&#39;]))continue;
    $newdir = rtrim($dir,"/")."/".$f;
    if (is_dir($newdir)){
     $files = array_merge($files,$this->GetFileList($newdir,$newdir));
    }else{
     $abspath_file = (rtrim($dir,"/") ? rtrim($dir,"/")."/" : "").$f;
     $this->fctimes[$abspath_file] = filemtime($abspath_file);
     if (!$this->getFileByFilectime($abspath_file))continue;
     $file = (rtrim($pathP,"/") ? rtrim($pathP,"/")."/" : "").$f;
     $files[] = $file;
    }
   }
  }
  return $files;
 }
}
/**
 * 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  = &#39;&#39;;
 private $username  = &#39;&#39;;
 private $password  = &#39;&#39;;
 private $port  = 21;
 private $passive = TRUE;
 private $debug   = TRUE;
 private $conn_id = FALSE;
 /**
  * 构造函数
  *
  * @param  array  配置数组 : $config = array(&#39;hostname&#39;=>&#39;&#39;,&#39;username&#39;=>&#39;&#39;,&#39;password&#39;=>&#39;&#39;,&#39;port&#39;=>&#39;&#39;...);
  */
 public function __construct($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;
 }
 /**
  * 文件夹是否存在
  * @param unknown_type $path
  */
 public function is_dir_exists($path)
 {
  return $this->chgdir($path);
 }
 /**
  * 目录改变
  *
  * @access public
  * @param  string 目录标识(ftp)
  * @param  boolean 
  * @return boolean
  */
 public function chgdir($path = &#39;&#39;, $supress_debug = FALSE) {
  if($path == &#39;&#39; 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 = &#39;&#39;, $permissions = NULL) {
  if($path == &#39;&#39; 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 = &#39;auto&#39;, $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 == &#39;auto&#39;) {
   $ext = $this->_getext($localpath);
   $mode = $this->_settype($ext);
  }
  $mode = ($mode == &#39;ascii&#39;) ? 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 = &#39;auto&#39;) {
  if( ! $this->_isconn()) {
   return FALSE;
  }
  if($mode == &#39;auto&#39;) {
   $ext = $this->_getext($remotepath);
   $mode = $this->_settype($ext);
  }
  $mode = ($mode == &#39;ascii&#39;) ? 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[".$remotepath."]");
   }
   return FALSE;
  }
  return TRUE;
 }
 /**
  * 重命名/移动
  *
  * @access public
  * @param  string 远程目录标识(ftp)
  * @param  string 新目录标识
  * @param  boolean 判断是重命名(FALSE)还是移动(TRUE) 
  * @return boolean
  */
 public function rename($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&#39;/&#39;字符添加反斜杠&#39;\&#39;
  $path = preg_replace("/(.+?)\/*$/", "\\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( ! $this->_isconn()) {
   return FALSE;
  }
  //只有在PHP5中才定义了修改权限的函数(ftp)
  if( ! function_exists(&#39;ftp_chmod&#39;)) {
   if($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 = &#39;.&#39;) {
  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
  $this->hostname = preg_replace(&#39;|.+?://|&#39;,&#39;&#39;,$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, &#39;.&#39;)) {
   return &#39;txt&#39;;
  }
  $extarr = explode(&#39;.&#39;, $filename);
  return end($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) {
  $text_type = array (
       &#39;txt&#39;,
       &#39;text&#39;,
       &#39;php&#39;,
       &#39;phps&#39;,
       &#39;php4&#39;,
       &#39;js&#39;,
       &#39;css&#39;,
       &#39;htm&#39;,
       &#39;html&#39;,
       &#39;phtml&#39;,
       &#39;shtml&#39;,
       &#39;log&#39;,
       &#39;xml&#39;
       );
  return (in_array($ext, $text_type)) ? &#39;ascii&#39; : &#39;binary&#39;;
 }
 /**
  * 错误日志记录
  *
  * @access prvate
  * @return boolean
  */
 private function _error($msg) {
  return @file_put_contents(&#39;/tmp/ftp_err.log&#39;, "date[".date("Y-m-d H:i:s")."]-hostname[".$this->hostname."]-username[".$this->username."]-password[".$this->password."]-msg[".$msg."]\n", FILE_APPEND);
 }
}
/*End of file ftp.php*/
/*Location /Apache Group/htdocs/ftp.php*/

总结：以上就是本篇文的全部内容，希望能对大家的学习有所帮助。

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