static public function getUploadFilePath($filename)
    {
        if ($filename) {
            $filename = static::getUploadFileRelativePath($filename);
            
            if (static::isRootImageFile($filename)) {
                
                return static::getWebRootPath() . $filename;
            }
            
            $filename = static::getUploadPath() . $filename;
        }
        
        return $filename;
    }
static public function getUploadFilePath($filename)
    {
        if ($filename) {
            $filename = static::getUploadFileRelativePath($filename);
            
            if (static::isRootImageFile($filename)) {
                
                return static::getWebRootPath() . $filename;
            }
            
            $filename = static::getUploadPath() . $filename;
        }
        
        return $filename;
    }
static public function getUploadFilePath ( $ filename ) { if ( $ filename ) { $ filename = static :: getUploadFileRelativePath ( $ filename ) ; if ( static :: isRootImageFile ( $ filename ) ) { return static :: getWebRootPath ( ) . $ filename ; } $ filename = static :: getUploadPath ( ) . $ filename ; } return $ filename ; }
get upload file absolute path
@param  string $filename
@return string
get upload file absolute path