If you prefer to copy and paste HTML, the paste it into a PHP file but outside of the PHP tags:
<?php
/*
* May brand new PHP Website
*/
$title_prefix = '- Escaping the Tags';
?>
<html>
<head>
<title>Supersite Deluxe <?php echo $title_prefix; ?></title>
</head>
<body>
....
</body>
</html>
That is especially useful if you have to a lot of HTML, because you can just paste it in.