<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="utf-8">
<title>１行掲示板</title>
</head>
<body>
<?php
// データベースに接続する
$pdo = new PDO("mysql:host=127.0.0.1;dbname=lesson;charset=utf8", "root", "");
// print_r($_POST);
// 受け取ったidのレコードの削除
if (isset($_POST["delete_id"])) {
$delete_id = $_POST["delete_id"];
$sql = "DELETE FROM bbs WHERE id = :delete_id;";
$stmt = $pdo->prepare($sql);
$stmt -> bindValue(":delete_id", $delete_id, PDO::PARAM_INT);
$stmt -> execute();
}
// 受け取ったデータを書き込む
if (isset($_POST["content"]) && isset($_POST["user_name"])) {
$content = $_POST["content"];
$user_name = $_POST["user_name"];
$sql = "INSERT INTO bbs (content, user_name, updated_at) VALUES (:content, :user_name, NOW());";
$stmt = $pdo->prepare($sql);
$stmt -> bindValue(":content", $content, PDO::PARAM_STR);
$stmt -> bindValue(":user_name", $user_name, PDO::PARAM_STR);
$stmt -> execute();
} ?>
<h1>１行掲示板</h1>
<h2>投稿フォーム</h2>
<form action="bbs.php" method="post">
<label>投稿内容
<input type="text" name="content">
</label>
<label>投稿者
<input type="text" name="user_name">
</label>
<button type="submit">送信</button>
</form>
<h2>発言リスト</h2>
<?php
// データベースからデータを取得する
$sql = "SELECT * FROM bbs ORDER BY updated_at;";
$stmt = $pdo->prepare($sql);
$stmt -> execute();
?>
<table>
<tr>
<th>id</th>
<th>日時</th>
<th>投稿内容</th
<th>投稿者</th>
<th></th>
</tr>
<?php
// 取得したデータを表示する
while ($row = $stmt -> fetch(PDO::FETCH_ASSOC)) : ?>
<tr>
<td><?= $row["id"] ?></td>
<td><?= $row["updated_at"] ?></td>
<td><?= $row["content"] ?></td>
<td><?= $row["user_name"] ?></td>
<td>
<form action="bbs.php" method="post">
<input type="hidden" name="delete_id" value= <?= $row["id"] ?> >
<button type="submit">削除</button>
</form>
</td>
</tr>
<?php endwhile; ?>
</table>
</body>
</html>
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