Warning: session_start(): open(/var/lib/php/sessions/sess_bg4vnsp8a0bp0scblljdtuoht9, O_RDWR) failed: No space left on device (28) in /users/2019/i1919071/public_html/2022/WebProg/ch10/exam10-05.php on line 1

Warning: session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in /users/2019/i1919071/public_html/2022/WebProg/ch10/exam10-05.php on line 1
세션ID :
session1 :
Warning: Undefined array key "session1" in /users/2019/i1919071/public_html/2022/WebProg/ch10/exam10-05.php on line 10

session2 :
Warning: Undefined array key "session2" in /users/2019/i1919071/public_html/2022/WebProg/ch10/exam10-05.php on line 11

session3 :
Warning: Undefined array key "session3" in /users/2019/i1919071/public_html/2022/WebProg/ch10/exam10-05.php on line 12

세션확인
세션확인 sessio1 삭제
모든세션변수삭제
세션삭제