請問pcdvd回文上傳附加檔案為何會失敗
 

Warning: move_uploaded_file(./attachment/3c15f4293fad3297768cee216ebec40d) [function.move-uploaded-file]: failed to open stream: Permission denied in /includes/functions_file.php on line 270

Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move '/var/tmp/phpn6INqb' to './attachment/3c15f4293fad3297768cee216ebec40d' in /includes/functions_file.php on line 270

Warning: filesize() [function.filesize]: Stat failed for ./attachment/3c15f4293fad3297768cee216ebec40d (errno=13 - Permission denied) in /includes/functions_file.php on line 282

每次都出現這種訊息
圖檔是jpeg格式
請問是哪邊出問題
謝謝回答