PHP file upload class_PHP tutorial

php file upload class and php file upload and php upload pictures and other php upload codes are just different in form.

class Uploader
{
var $_base_dir = null;
var $_rel_dir = null;
var $_random_fname = false;
var $_random_fname_len = 5;
var $_fname_filter = null;
var $_ftype_filter = null;
var $_origin_paths = array();

function Uploader( $base_dir, $rel_dir )
{
$this->_base_dir = $base_dir;
$this->_rel_dir = $rel_dir;
}
function setRandomFileName($random_fname, $random_fname_len=5)
{
$this->_random_fname = $random_fname;
$this->_random_fname_len = $random_fname_len;
}
function setFileTypeFilter($filter)
{
$this->_ftype_filter = $filter;
}
function addFile($file, $origin_path='')
{
$file = trim($file);
$origin_path = trim($origin_path);
if( array_key_exists($file, $this->_origin_paths) )
$this-> _origin_paths[$file] = $origin_path;
}
function upload()
{
foreach( $this->_origin_paths as $file => $origin_path )
{
             $result = $this->_uploadFile($file, $origin_path);

                                                                                                                                                                                                                                                                                          through 🎜> * @desc Upload attachment
* @return Success returns Success, failure returns failure type
* @param $file file name $orgin_path file path
*/
function _uploadFile($file, $origin_path) //Upload attachment
{
$ffile = $_FILES[$file]['tmp_name']; //The temporary file name stored on the server after the file is uploaded.
$ FNAME = $ _Files [$ File] ['name']; // The original name of the client machine file.
$fsize = $_FILES[$file]['size']; //The size of the uploaded file
$ftype = $_FILES[$file]['type']; //The MIME type of the file
                                                                                                                      ter) && ! is_null($this->_ftype_filter) )
                                                                                                                                              foreach($extensions as $extension)
{
if( strtolower(strrchr($fname,'.')) == '.'.strtolower(trim($extension)) )
                      $match = true ;
break;
}
}
if( !$match )
                 return 'ErrorFileTypeFilterNotMatch';
                                                                                                                        –>_rel_dir; ffile, $ fpath . $fname ) or die( 'upload failed!' );
                                                                                                                                      $new_path) && $origin_path!=$new_path )
{
$this->delete($origin_path);
}
if( !empty($new_path) )
$this ->_origin_paths[$file] = $new_path;        $Erroe=$_FILES[$file]['error'];   
        switch($Erroe){
          case 1:
              return 'ErrExceedUploadMaxFileSize';
              break;
          case 2:
              return 'ErrExceedHtmlMaxFileSize';
              break;
          case 3:
              return 'ErrPartFileTrans';
              break;
//          case 4:
//              return 'ErrNoFileTrans';
//              break;
          default:
             return 'Success';
        }     
    }
     /*
      * @desc   取得路径 
      * @return  路径
      * @param   无
      */
    function getFilePath()
    {
        return $this->_origin_paths;
    }
    function getFileAbsPath()
    {
        $paths = array();
        foreach( $this->_origin_paths as $path )
        {
            $paths[] = $this->_base_dir . $path;
        }
        return $paths;
    }
    function delete( $fpath )
    {
        if( !empty($fpath) && is_file($this->_base_dir . $fpath) )
            unlink( $this->_base_dir . $fpath ) or die( 'unlink error' );
    }
    function _getUniqueFileName( $fname, $len )
    {
        $timestamp = date('YmdHis');
        srand((double)microtime()*1000000);
        for( $i=0, $randfname=''; $i<$len; $i++ )
        {
            $num = rand(0, 35);
            if( $num < 10 )
                $randfname .=  chr( ord('0')+$num );
            else
                $randfname .=  chr( ord('a')+$num-10 );
        }
        return $timestamp.'_'.$randfname.strtolower(strrchr($fname,'.'));
    }
}
?>