PHP用FTP类上传文件视频等的简单实现方法

文件1：ftp.php

<?php/** * 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;private $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($config);}//判断是否打开了ftp连接if(FALSE === ($this->conn_id = @ftp_connect($this->hostname,$this->port))) {if($this->debug === TRUE) {$this->_error("ftp_unable_to_connect");}return FALSE;}//判断是否登录成功if( ! $this->_login()) {if($this->debug === TRUE) {$this->_error("ftp_unable_to_login");}return FALSE;}//判断是否开启FTP被动模式if($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( ! $this->_isconn()) {return FALSE;}//判断本地文件是否存在if( ! file_exists($localpath)) {if($this->debug === TRUE) {$this->_error("ftp_no_source_file:".$localpath);}return FALSE;}//判断上传模式if($mode == 'auto') {      //获取文件后缀类型$ext = $this->_getext($localpath);      //根据后缀类型决定上传模式是 FTP_ASCII(文本模式) 还是 FTP_BINARY(二进制模式);$mode = $this->_settype($ext);}$mode = ($mode == 'ascii') ? FTP_ASCII : FTP_BINARY;//上传$result = @ftp_put($this->conn_id, $remotepath, $localpath, $mode);//判断上传是否成功if($result === FALSE) {if($this->debug === TRUE) {$this->_error("ftp_unable_to_upload:localpath[".$localpath."]/remotepath[".$remotepath."]");}return FALSE;}//判断是否需要改写文件权限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;}/*** 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);}}/*End of file ftp.php*//*Location /Apache Group/htdocs/ftp.php*/