<?php
/**
 * 仿寫(xiě)CodeIgniter的FTP類(lèi)
 * FTP基本操作：
 * 1) 登陸; connect
 * 2) 當(dāng)前目錄文件列表; filelist
 * 3) 目錄改變; chgdir
 * 4) 重命名/移動(dòng); rename
 * 5) 創(chuàng)建文件夾; mkdir
 * 6) 刪除; delete_dir/delete_file
 * 7) 上傳; upload
 * 8) 下載 download
 *
 * @author quanshuidingdang
 */
class Ftp {


private $hostname
= '';
private $username
= '';
private $password
= '';
private $port 
= 21;
private $passive 
= TRUE;
private $debug
= TRUE;
private $conn_id 
= FALSE;

/**
* 構(gòu)造函數(shù)
*
* @param array 配置數(shù)組 : $config = array('hostname'=>'','username'=>'','password'=>'','port'=>''...);
*/
public function __construct($config = array()) {
if(count($config) > 0) {
$this->_init($config);
}
}

/**
* FTP連接
*
* @access public
* @param array 配置數(shù)組
* @return boolean
*/
public function connect($config = array()) {
if(count($config) > 0) {
$this->_init($config);
}
//判斷是否打開(kāi)了ftp連接
if(FALSE === ($this->conn_id = @ftp_connect($this->hostname,$this->port))) {
if($this->debug === TRUE) {
$this->_error("ftp_unable_to_connect");
}
return FALSE;
}
//判斷是否登錄成功
if( ! $this->_login()) {
if($this->debug === TRUE) {
$this->_error("ftp_unable_to_login");
}
return FALSE;
}
//判斷是否開(kāi)啟FTP被動(dòng)模式
if($this->passive === TRUE) {
ftp_pasv($this->conn_id, TRUE);
}

return TRUE;
}



/**
* 目錄改變
*
* @access public
* @param string 目錄標(biāo)識(shí)(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;
}

/**
* 目錄生成
*
* @access public
* @param string 目錄標(biāo)識(shí)(ftp)
* @param int  文件權(quán)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;
}

/**
* 上傳
*
* @access public
* @param string 本地目錄標(biāo)識(shí)
* @param string 遠(yuǎn)程目錄標(biāo)識(shí)(ftp)
* @param string 上傳模式 auto || ascii
* @param int 上傳后的文件權(quán)限列表

* @return boolean
*/
public function upload($localpath, $remotepath, $mode = 'auto', $permissions = NULL) {
if( ! $this->_isconn()) {
return FALSE;
}
//判斷本地文件是否存在
if( ! file_exists($localpath)) {
if($this->debug === TRUE) {
$this->_error("ftp_no_source_file:".$localpath);
}
return FALSE;
}
//判斷上傳模式
if($mode == 'auto') {
      //獲取文件后綴類(lèi)型
$ext = $this->_getext($localpath);
      //根據(jù)后綴類(lèi)型決定上傳模式是 FTP_ASCII(文本模式) 還是 FTP_BINARY(二進(jìn)制模式);
$mode = $this->_settype($ext);
}

$mode = ($mode == 'ascii') ? FTP_ASCII : FTP_BINARY;
//上傳
$result = @ftp_put($this->conn_id, $remotepath, $localpath, $mode);
//判斷上傳是否成功
if($result === FALSE) {
if($this->debug === TRUE) {
$this->_error("ftp_unable_to_upload:localpath[".$localpath."]/remotepath[".$remotepath."]");
}
return FALSE;
}
//判斷是否需要改寫(xiě)文件權(quán)限
if( ! is_null($permissions)) {
$this->chmod($remotepath,(int)$permissions);
}

return TRUE;
}

/**
* 下載
*
* @access public
* @param string 遠(yuǎn)程目錄標(biāo)識(shí)(ftp)
* @param string 本地目錄標(biāo)識(shí)
* @param string 下載模式 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;
}

/**
* 重命名/移動(dòng)
*
* @access public
* @param string 遠(yuǎn)程目錄標(biāo)識(shí)(ftp)
* @param string 新目錄標(biāo)識(shí)
* @param boolean 判斷是重命名(FALSE)還是移動(dòng)(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;
}

/**
* 刪除文件
*
* @access public
* @param string 文件標(biāo)識(shí)(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;
}

/**
* 刪除文件夾
*
* @access public
* @param string 目錄標(biāo)識(shí)(ftp)
* @return boolean
*/
public function delete_dir($path) {
if( ! $this->_isconn()) {
return FALSE;
}

//對(duì)目錄宏的'/'字符添加反斜杠'\'
$path = preg_replace("/(.+?)\/*$/", "\\1/", $path);

//獲取目錄文件列表
$filelist = $this->filelist($path);

if($filelist !== FALSE AND count($filelist) > 0) {
foreach($filelist as $item) {
//如果我們無(wú)法刪除,那么就可能是一個(gè)文件夾
//所以我們遞歸調(diào)用delete_dir()
if( ! @delete_file($item)) {
$this->delete_dir($item);
}
}
}

//刪除文件夾(空文件夾)
$result = @ftp_rmdir($this->conn_id, $path);

if($result === FALSE) {
if($this->debug === TRUE) {
$this->_error("ftp_unable_to_delete_dir:dir[".$path."]");
}
return FALSE;
}

return TRUE;
}

/**
* 修改文件權(quán)限
*
* @access public
* @param string 目錄標(biāo)識(shí)(ftp)
* @return boolean
*/
public function chmod($path, $perm) {
if( ! $this->_isconn()) {
return FALSE;
}

//只有在PHP5中才定義了修改權(quán)限的函數(shù)(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;
}

/**
* 獲取目錄文件列表
*
* @access public
* @param string 目錄標(biāo)識(shí)(ftp)
* @return array
*/
public function filelist($path = '.') {
if( ! $this->_isconn()) {
return FALSE;
}

return ftp_nlist($this->conn_id, $path);
}

/**
* 關(guān)閉FTP
*
* @access public
* @return boolean
*/
public function close() {
if( ! $this->_isconn()) {
return FALSE;
}

return @ftp_close($this->conn_id);
}

/**
* FTP成員變量初始化
*
* @access private
* @param array 配置數(shù)組  
* @return void
*/
private function _init($config = array()) {
foreach($config as $key => $val) {
if(isset($this->$key)) {
$this->$key = $val;
}
}


//特殊字符過(guò)濾
$this->hostname = preg_replace('|.+?://|','',$this->hostname);
}

/**
* FTP登陸
*
* @access private
* @return boolean
*/
private function _login() {
return @ftp_login($this->conn_id, $this->username, $this->password);
}

/**
* 判斷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;
}

/**
* 從文件名中獲取后綴擴(kuò)展
*
* @access private
* @param string 目錄標(biāo)識(shí)
* @return string
*/
private function _getext($filename) {
if(FALSE === strpos($filename, '.')) {
return 'txt';
}

$extarr = explode('.', $filename);
return end($extarr);
}

/**
* 從后綴擴(kuò)展定義FTP傳輸模式 ascii 或 binary
*
* @access private
* @param string 后綴擴(kuò)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';
}

/**
* 錯(cuò)誤日志記錄
*
* @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);
}
}


/*End of file ftp.php*/
/*Location /Apache Group/htdocs/ftp.php*/

<?php
require_once('ftp.php');


$config = array(
'hostname' => '101.64.183.92', //服務(wù)器地址
'username' => 'ftpadminuser',  //FTP登錄賬號(hào)
'password' => 'admin_user',   //FTP登錄密碼
'port' => 2112         //端口號(hào)
);


$ftp = new Ftp();
//連接
$ftp->connect($config);
//上傳第一個(gè)參數(shù)是本地文件名，第二個(gè)參數(shù)是FTP文件名
$rs=$ftp->upload('jsyh.flv','jsyh.flv');
if($rs){
  echo 1;
}
// $ftp->download('ftp_upload.log','ftp_download.log');