세선ID : 69rhhondu2003s9nua2uuqtmui
session1 :
Warning: Undefined array key "session1" in /users/2016/i1658051/public_html/2019/webprog/ch10/exam10-08.php on line 14

session2 :
Warning: Undefined array key "session2" in /users/2016/i1658051/public_html/2019/webprog/ch10/exam10-08.php on line 15

session3 :
Warning: Undefined array key "session3" in /users/2016/i1658051/public_html/2019/webprog/ch10/exam10-08.php on line 16

세션설정
세션확인
세션변수 session1 삭제
모든세션변수삭제