세션ID: 48v78hv3838la6dcnus9iijg0h
session1 :
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session2 :
Warning: Undefined array key "session2" in /users/2021/i2151032/public_html/2022/WebProg/ch10/exam10-07.php on line 27
session3 :
Warning: Undefined array key "session3" in /users/2021/i2151032/public_html/2022/WebProg/ch10/exam10-07.php on line 29
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