PHP使用FTP上传文件到服务器(实战篇)

<?php/** * Created by PhpStorm. * User: 123456 * Date: 2018/9/20 * Time: 11:15 * @author sunjiaqiang * @email 1355049422@qq.com */ ???class Ftp{ ???????private $host=‘‘;//远程服务器地址 ???????private $user=‘‘;//ftp用户名 ???????private $pass=‘‘;//ftp密码 ???????private $port=21;//ftp登录端口 ???????private $error=‘‘;//最后失败时的错误信息 ???????protected $conn;//ftp登录资源 ???????/** ????????* 可以在实例化类的时候配置数据，也可以在下面的connect方法中配置数据 ????????* Ftp constructor. ????????* @param array $config ????????*/ ???????public function __construct(array $config=[]) ???????{ ???????????empty($config) OR $this->initialize($config); ???????} ???????/** ????????* 初始化数据 ????????* @param array $config 配置文件数组 ????????*/ ???????public function initialize(array $config=[]){ ???????????$this->host = $config[‘host‘]; ???????????$this->user = $config[‘user‘]; ???????????$this->pass = $config[‘pass‘]; ???????????$this->port = isset($config[‘port‘]) ?: 21; ???????} ???????/** ????????* 连接及登录ftp ????????* @param array $config 配置文件数组 ????????* @return bool ????????*/ ???????public function connect(array $config=[]){ ???????????empty($config) OR $this->initialize($config); ???????????if (FALSE == ($this->conn = @ftp_connect($this->host))){ ???????????????$this->error = "主机连接失败"; ???????????????return FALSE; ???????????} ???????????if ( ! $this->_login()){ ???????????????$this->error = "服务器登录失败"; ???????????????return FALSE; ???????????} ???????????return TRUE; ???????} ???????/** ????????* 上传文件到ftp服务器 ????????* @param string $local_file 本地文件路径 ????????* @param string $remote_file 服务器文件地址 ????????* @param bool $permissions 文件夹权限 ????????* @param string $mode 上传模式(ascii和binary其中之一) ????????*/ ???????public function upload($local_file=‘‘,$remote_file=‘‘,$mode=‘auto‘,$permissions=NULL){ ???????????if ( ! file_exists($local_file)){ ???????????????$this->error = "本地文件不存在"; ???????????????return FALSE; ???????????} ???????????if ($mode == ‘auto‘){ ???????????????$ext = $this->_get_ext($local_file); ???????????????$mode = $this->_set_type($ext); ???????????} ???????????//创建文件夹 ???????????$this->_create_remote_dir($remote_file); ???????????$mode = ($mode == ‘ascii‘) ? FTP_ASCII : FTP_BINARY; ???????????$result = @ftp_put($this->conn,$remote_file,$local_file,$mode);//同步上传 ???????????if ($result === FALSE){ ???????????????$this->error = "文件上传失败"; ???????????????return FALSE; ???????????} ???????????return TRUE; ???????} ???????/** ????????* 从ftp服务器下载文件到本地 ????????* @param string $local_file 本地文件地址 ????????* @param string $remote_file 远程文件地址 ????????* @param string $mode 上传模式(ascii和binary其中之一) ????????*/ ???????public function download($local_file=‘‘,$remote_file=‘‘,$mode=‘auto‘){ ???????????if ($mode == ‘auto‘){ ???????????????$ext = $this->_get_ext($remote_file); ???????????????$mode = $this->_set_type($ext); ???????????} ???????????$mode = ($mode == ‘ascii‘) ? FTP_ASCII : FTP_BINARY; ???????????$result = @ftp_get($this->conn, $local_file, $remote_file, $mode); ???????????if ($result === FALSE){ ???????????????return FALSE; ???????????} ???????????return TRUE; ???????} ???????/** ????????* 删除ftp服务器端文件 ????????* @param string $remote_file 文件地址 ????????*/ ???????public function delete_file(string $remote_file=‘‘){ ???????????$result = @ftp_delete($this->conn,$remote_file); ???????????if ($result === FALSE){ ???????????????return FALSE; ???????????} ???????????return TRUE; ???????} ???????/** ????????* ftp创建多级目录 ????????* @param string $remote_file 要上传的远程图片地址 ????????*/ ???????private function _create_remote_dir($remote_file=‘‘,$permissions=NULL){ ???????????$remote_dir = dirname($remote_file); ???????????$path_arr = explode(‘/‘,$remote_dir); // 取目录数组 ???????????//$file_name = array_pop($path_arr); // 弹出文件名 ???????????$path_div = count($path_arr); // 取层数 ???????????foreach($path_arr as $val) // 创建目录 ???????????{ ???????????????if(@ftp_chdir($this->conn,$val) == FALSE) ???????????????{ ???????????????????$tmp = @ftp_mkdir($this->conn,$val);//此处创建目录时不用使用绝对路径(不要使用:2018-02-20/ceshi/ceshi2，这种路径)，因为下面ftp_chdir已经已经把目录切换成当前目录 ???????????????????if($tmp == FALSE) ???????????????????{ ???????????????????????echo "目录创建失败，请检查权限及路径是否正确！"; ???????????????????????exit; ???????????????????} ???????????????????if ($permissions !== NULL){ ???????????????????????//修改目录权限 ???????????????????????$this->_chmod($val,$permissions); ???????????????????} ???????????????????@ftp_chdir($this->conn,$val); ???????????????} ???????????} ???????????for($i=0;$i<$path_div;$i++) // 回退到根,因为上面的目录切换导致当前目录不在根目录 ???????????{ ???????????????@ftp_cdup($this->conn); ???????????} ???????} ???????/** ????????* 递归删除ftp端目录 ????????* @param string $remote_dir ftp目录地址 ????????*/ ???????public function delete_dir(string $remote_dir=‘‘){ ???????????$list = $this->list_file($remote_dir); ???????????if ( ! empty($list)){ ???????????????$count = count($list); ???????????????for ($i=0;$i<$count;$i++){ ???????????????????if ( ! preg_match(‘#\.#‘,$list[$i]) && !@ftp_delete($this->conn,$list[$i])){ ???????????????????????//这是一个目录，递归删除 ???????????????????????$this->delete_dir($list[$i]); ???????????????????}else{ ???????????????????????$this->delete_file($list[$i]); ???????????????????} ???????????????} ???????????} ???????????if (@ftp_rmdir($this->conn,$remote_dir) === FALSE){ ???????????????return FALSE; ???????????} ???????????return TRUE; ???????} ???????/** ????????* 更改 FTP 服务器上的文件或目录名 ????????* @param string $old_file 旧文件/文件夹名 ????????* @param string $new_file 新文件/文件夹名 ????????*/ ???????public function remane(string $old_file=‘‘,string $new_file=‘‘){ ???????????$result = @ftp_rename($this->conn,$old_file,$new_file); ???????????if ($result === FALSE){ ???????????????$this->error = "移动失败"; ???????????????return FALSE; ???????????} ???????????return TRUE; ???????} ???????/** ????????* 列出ftp指定目录 ????????* @param string $remote_path ????????*/ ???????public function list_file(string $remote_path=‘‘){ ???????????$contents = @ftp_nlist($this->conn, $remote_path); ???????????return $contents; ???????} ???????/** ????????* 获取文件的后缀名 ????????* @param string $local_file ????????*/ ???????private function _get_ext($local_file=‘‘){ ???????????return (($dot = strrpos($local_file,‘.‘))==FALSE) ? ‘txt‘ : substr($local_file,$dot+1); ???????} ???????/** ????????* 根据文件后缀获取上传编码 ????????* @param string $ext ????????*/ ???????private function _set_type($ext=‘‘){ ???????????//如果传输的文件是文本文件，可以使用ASCII模式，如果不是文本文件，最好使用BINARY模式传输。 ???????????return in_array($ext, [‘txt‘, ‘text‘, ‘php‘, ‘phps‘, ‘php4‘, ‘js‘, ‘css‘, ‘htm‘, ‘html‘, ‘phtml‘, ‘shtml‘, ‘log‘, ‘xml‘], TRUE) ? ‘ascii‘ : ‘binary‘; ???????} ???????/** ????????* 修改目录权限 ????????* @param $path 目录路径 ????????* @param int $mode 权限值 ????????*/ ???????private function _chmod($path,$mode=0755){ ???????????if (FALSE == @ftp_chmod($this->conn,$path,$mode)){ ???????????????return FALSE; ???????????} ???????????return TRUE; ???????} ???????/** ????????* 登录Ftp服务器 ????????*/ ???????private function _login(){ ???????????return @ftp_login($this->conn,$this->user,$this->pass); ???????} ???????/** ????????* 获取上传错误信息 ????????*/ ???????public function get_error_msg(){ ???????????return $this->error; ???????}/** * 关闭ftp连接 * @return bool */public function close(){ ???return $this->conn ? @ftp_close($this->conn_id) : FALSE;} ???}

<?php/** * Created by PhpStorm. * User: 123456 * Date: 2018/9/20 * Time: 14:07 */declare(strict_types=1);include ‘Ftp.php‘;$config = [ ???‘host‘=>‘192.168.0.148‘, ???‘user‘=>‘ftpuser‘, ???‘pass‘=>‘123456‘];$ftp = new Ftp($config);$result = $ftp->connect();if ( ! $result){ ???echo $ftp->get_error_msg();}$local_file = ‘video3.mp4‘;$remote_file = date(‘Y-m‘).‘/video3.mp4‘;//上传文件if ($ftp->upload($local_file,$remote_file)){ ???echo "上传成功";}else{ ???echo "上传失败";}//删除文件if ($ftp->delete_file($remote_file)){ ???echo "删除成功";}else{ ???echo "删除失败";}//删除整个目录$remote_path=‘2018-09-19‘;if ($ftp->delete_dir($remote_path)){ ???echo "目录删除成功";}else{ ???echo "目录删除失败";}//下载文件$local_file2 = ‘video5.mp4‘;$remote_file2=‘video3.mp4‘;if ($ftp->download($local_file2,$remote_file2)){ ???echo "下载成功";}else{ ???echo "下载失败";}//移动文件|重命名文件$local_file3 = ‘video3.mp4‘;$remote_file3=‘shangchuan3/video3.mp4‘;if ($ftp->remane($local_file3,$remote_file3)){ ???echo "移动成功";}else{ ???echo "移动失败";}$ftp->close();//p($result);function p($data=‘‘){ ???echo ‘<pre>‘; ???print_r($data); ???echo ‘</pre>‘;}