<?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>