Warning: include(menual.php): failed to open stream: No such file or directory in /home/estudy/html/user_menual.php on line 3

Warning: include(): Failed opening 'menual.php' for inclusion (include_path='.:/usr/lib64/php') in /home/estudy/html/user_menual.php on line 3
해당 파일이나 경로가 존재하지 않습니다.