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exam.php
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<?php
/**
* n人の生徒がいます
* 年にn回(3回)テストが開催されます
* 教科はn個(算数、国語、理科、社会、英語)あります
* 点数はランダムで0〜100点
* ランクを適当に定義する（300〜250=A,249〜200=B,...など）
*
* 結果を表示してください
* 各テストごとの生徒ごとの教科ごとの点数を表で表示
* 生徒ごとの教科ごとの年間合計点数を表示
* 上記年間合計点数によるランク表示も合わせて表示
*
* 表の形式はいい感じで（見たときに分かりやすく）
*/
function decide_rank($score, $rank_min_scores) {
foreach ($rank_min_scores as $rank => $rank_min_score) {
if ($score >= $rank_min_score) {
return $rank;
}
}
}
$tests_count = 3;
$perfect_score = 100;
$student_names = [
1 => '一郎',
2 => '次郎',
3 => '三郎',
];
$subjects = ['算数', '国語', '理科', '社会', '英語'];
$rank_min_scores = [
'A' => 250,
'B' => 200,
'C' => 150,
'D' => 100,
'E' => 50,
'F' => 0,
];
$total_scores = [];
foreach (array_keys($student_names) as $student_id) {
$total_scores[$student_id] = [];
foreach ($subjects as $subject) {
$total_scores[$student_id][$subject] = 0;
}
}
$scores = [];
for ($test_number = 1; $test_number <= $tests_count; $test_number++) {
$scores[$test_number] = [];
foreach (array_keys($student_names) as $student_id) {
$scores[$test_number][$student_id] = [];
foreach ($subjects as $subject) {
$score = mt_rand(0, $perfect_score);
$scores[$test_number][$student_id][$subject] = $score;
$total_scores[$student_id][$subject] += $score;
}
}
}
$ranks = [];
foreach (array_keys($student_names) as $student_id) {
$ranks[$student_id] = [];
foreach ($subjects as $subject) {
$ranks[$student_id][$subject] = decide_rank($total_scores[$student_id][$subject], $rank_min_scores);
if (empty($ranks[$student_id][$subject])) {
echo 'error on decide_rank';
exit;
}
}
}
?>
<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset='utf-8'>
<title>exam</title>
</head>
<body>
<?php for ($test_number = 1; $test_number <= $tests_count; $test_number++) : ?>
<table border='1'>
<tr>
<td>第 <?php echo $test_number ?> 回</td>
<?php foreach ($subjects as $subject) : ?>
<td><?php echo $subject ?></td>
<?php endforeach ?>
</tr>
<?php foreach ($student_names as $student_id => $student_name) : ?>
<tr>
<td><?php echo $student_name ?> さん</td>
<?php foreach ($subjects as $subject) : ?>
<td><?php echo $scores[$test_number][$student_id][$subject] ?> 点</td>
<?php endforeach ?>
</tr>
<?php endforeach ?>
</table>
<br>
<?php endfor ?>
<?php foreach ($student_names as $student_id => $student_name) : ?>
<table border='1'>
<tr>
<td><?php echo $student_name ?> さん</td>
<?php foreach ($subjects as $subject) : ?>
<td><?php echo $subject ?></td>
<?php endforeach ?>
</tr>
<tr>
<td>年間合計点数</td>
<?php foreach ($subjects as $subject) : ?>
<td><?php echo $total_scores[$student_id][$subject] ?> 点</td>
<?php endforeach ?>
</tr>
<tr>
<td>ランク</td>
<?php foreach ($subjects as $subject) : ?>
<td><?php echo $ranks[$student_id][$subject] ?></td>
<?php endforeach ?>
</tr>
</table>
<br>
<?php endforeach ?>
</body>
</html>