세션ID: 3cdb4sn6pgpnf0010iglhhlla3
session1 :
Warning: Undefined array key "session1" in /users/2021/i2151032/public_html/2022/WebProg/ch10/exam10-05.php on line 19
session2 :
Warning: Undefined array key "session2" in /users/2021/i2151032/public_html/2022/WebProg/ch10/exam10-05.php on line 21
session3 :
Warning: Undefined array key "session3" in /users/2021/i2151032/public_html/2022/WebProg/ch10/exam10-05.php on line 23
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