04.php

functions.phpの作成

function connectDb() {
    try {
        return new PDO(DSN, DB_USER, DB_PASSWORD);
    } catch (PDOException $e) {
        echo $e->getMessage();
        exit;
    }
}

function h($s) {
    return htmlspecialchars($s, ENT_QUOTES, "UTF-8");
}

問合せページの作成 [index.php]

<?php
require_once('config.php');
require_once('functions.php');
?>
<!DOCTYPE html>
<html lang="ja">
<head>
    <meta charset="UTF-8">
    <title>お問合せフォーム</title>
</head>
<body>
<h1>お問合せフォーム</h1>
</body>
</html>