ソースコード分割

<?php
require_once("settings.ppp");
require_once("html-head.ppp");
require_once("html-view.ppp");
?>

settings.ppp

<?php
// セッション
session_cache_limiter('nocache');
session_start();
 
// ブラウザに必要な情報
header("Content-type: text/html; charset=utf-8");
 
?>

html-head.ppp

<!DOCTYPE html>
<html lang="ja">
<head>
<meta content="width=device-width initial-scale=1.0 minimum-scale=1.0 maximum-scale=1.0 user-scalable=no" name="viewport">
<meta charset="UTF-8">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/css/bootstrap.css">
<title>タイトル</title>
 
<style>
#main {
        padding: 20px;
}
 
.left {
        display:inline-block;
        width: 80px;
        margin-bottom: 20px;
}
 
.right {
        display:inline-block;
}
 
</style>
 
<script>
</script>
 
</head>

html-view.ppp

<body>
<div class="alert alert-primary">ページ内タイトル</div>
 
<div id="main">
        <form method="post">
 
                <div>
                        <div class="left">氏名</div>
                        <div class="right">
                                <input
                                        type="text"
                                        id="fld_name"
                                        name="fld_name"
                                        required>
                        </div>
                </div>
 
                <div>
                        <div class="left">フリガナ</div>
                        <div class="right">
                                <input
                                        type="text"
                                        id="fld_kana"
                                        name="fld_kana"
                                        required>
                        </div>
                </div>
 
                <input class="btn btn-primary" type="submit" name="send" value="送信">
 
        </form>
</div>
 
<?php
 
print "<pre>";
print_r($_POST);
print "</pre>";
 
?>
</body>
</html>