Notice: Undefined variable: is_correct in /var/www/html/quiz_result.php on line 191

残念!不正解!

正解は「
Notice: Undefined variable: pref_quiz in /var/www/html/quiz_result.php on line 203

解説:
Notice: Undefined variable: pref_quiz in /var/www/html/quiz_result.php on line 203