<?php
$name = "もつに";

function varout($message)
{
    echo "<pre><code>";
    echo json_encode($message, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
    echo "</code></pre>";
}

?>
<!DOCTYPE html>
<html lang="ja">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Hello PHP World!</title>
    </head>
    <body>
        こんにちは、<?php echo $name; ?>さん！
        <?=varout($_SERVER);?>
    </body>
</html>
