Warning: session_start(): open(/var/lib/php/sessions/sess_hpde8kaak3nafg053had3m0kfn, O_RDWR) failed: No space left on device (28) in /users/2019/i1919026/public_html/2022/WebProg/ch10/exam10-07.php on line 1

Warning: session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in /users/2019/i1919026/public_html/2022/WebProg/ch10/exam10-07.php on line 1
세션ID :
session1 :
Warning: Undefined array key "session1" in /users/2019/i1919026/public_html/2022/WebProg/ch10/exam10-07.php on line 13

session2 :
Warning: Undefined array key "session2" in /users/2019/i1919026/public_html/2022/WebProg/ch10/exam10-07.php on line 14

session3 :
Warning: Undefined array key "session3" in /users/2019/i1919026/public_html/2022/WebProg/ch10/exam10-07.php on line 15

세션설졍
세션확인
세션변수 session1 삭제
세션삭제