국어 :
Warning: Undefined array key "kor" in /users/2016/i1658051/public_html/2019/webprog/ch03/exam03-11.php on line 8

수학 :
Warning: Undefined array key "mat" in /users/2016/i1658051/public_html/2019/webprog/ch03/exam03-11.php on line 9

영어 :
Warning: Undefined array key "eng" in /users/2016/i1658051/public_html/2019/webprog/ch03/exam03-11.php on line 10

$total = $_GET["kor"] + $_GET["mat"] + $_GET["eng"]; $avg = $total / 3; ?> 총점 :
Warning: Undefined variable $total in /users/2016/i1658051/public_html/2019/webprog/ch03/exam03-11.php on line 15

평균 :
Warning: Undefined variable $avg in /users/2016/i1658051/public_html/2019/webprog/ch03/exam03-11.php on line 16