php ftp组建扩展类

php ftp组建扩展类

<?
class ftp {
    var $ftpUrl = '';
    var $ftpUser = '';
    var $ftpPass = '';
    var $ftpDir = '';
    var $ftpR = ''; //R ftp资源;
    var $status = '';
    //R 1:成功;2:无法连接ftp;3:用户错误;
    function ftp($ftpUrl="", $ftpUser="", $ftpPass="", $ftpDir="") {
        if($ftpUrl){
        $this->ftpUrl=$ftpUrl;
        }
        if($ftpUser){
        $this->ftpUser=$ftpUser;
        }
        if($ftpPass){
        $this->ftpPass=$ftpPass;
        }
        if($ftpUrl){
        $this->ftpDir=$ftpDir;
        }
           if ($this->ftpR = ftp_connect($this->ftpUrl, 21)) {
             if (ftp_login($this->ftpR, $this->ftpUser, $this->ftpPass)) {
             if (!empty($this->ftpDir)) {
               ftp_chdir($this->ftpR, $this->ftpDir);
             }
             ftp_pasv($this->ftpR, true);//R 启用被动模式;
             $status = 1;
             } else {
             $status = 3;
             }
           } else {
             $status = 2;
           }
    }
    //R 切换目录;
    function cd($dir) {
       return ftp_chdir($this->ftpR, $dir);
    }
    //R 返回当前路劲;
    function pwd() {
       return ftp_pwd($this->ftpR);
    }
    //R 创建目录
    function mkdir($directory) {
       return ftp_mkdir($this->ftpR,$directory);
    }
    //R 删除目录
    function rmdir($directory) {
       return ftp_rmdir($this->ftpR,$directory);
    }
    //R 上传文件;
    function put($localFile, $remoteFile = '') {
       if ($remoteFile == '') {
         $remoteFile = end(explode('/', $localFile));
       }
       $res = ftp_nb_put($this->ftpR, $remoteFile, $localFile, FTP_BINARY);
       while ($res == FTP_MOREDATA) {
         $res = ftp_nb_continue($this->ftpR);
       }
       if ($res == FTP_FINISHED) {
         return true;
       } elseif ($res == FTP_FAILED) {
         return false;
       }
    }
    //R 下载文件;
    function get($remoteFile, $localFile = '') {
       if ($localFile == '') {
         $localFile = end(explode('/', $remoteFile));
       }
       if (ftp_get($this->ftpR, $localFile, $remoteFile, FTP_BINARY)) {
         $flag = true;
       } else {
         $flag = false;
       }
       return $flag;
    }
    //R 文件大小;
    function size($file) {
       return ftp_size($this->ftpR, $file);
    }
    //R 文件是否存在;
    function isFile($file) {
       if ($this->size($file) >= 0) {
         return true;
       } else {
         return false;
       }
    }
    //R 文件时间
    function fileTime($file) {
       return ftp_mdtm($this->ftpR, $file);
    }
    //R 删除文件;
    function unlink($file) {
       return ftp_delete($this->ftpR, $file);
    }
    function nlist($dir = '/service/resource/') {
       return ftp_nlist($this->ftpR, $dir);
    }
    //R 关闭连接;
    function bye() {
       return ftp_close($this->ftpR);
    }
}