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Warning: session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in /users/2016/i1658010/public_html/2019/webprog/ch10/exam10-08.php on line 1
세션ID :

Warning: session_destroy(): Trying to destroy uninitialized session in /users/2016/i1658010/public_html/2019/webprog/ch10/exam10-08.php on line 11
session1 :
Warning: Undefined array key "session1" in /users/2016/i1658010/public_html/2019/webprog/ch10/exam10-08.php on line 13

session2 :
Warning: Undefined array key "session2" in /users/2016/i1658010/public_html/2019/webprog/ch10/exam10-08.php on line 14

session3 :
Warning: Undefined array key "session3" in /users/2016/i1658010/public_html/2019/webprog/ch10/exam10-08.php on line 15

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