Size of array1 =3
$array1[0] =10
$array1[1] =20
$array1[2] =30

Size of score =3
Lee : 100점

Warning: Undefined array key "Kim" in /users/2018/i1858031/public_html/2019/webprog/ch04/exam04-13.php on line 25
Kim : 점
Seo : 80점