// Why this?
$message = '<html><body>';
$message .= '<form action="http://mysite.com/process.php" method="post" target="_blank">';
$message .= '<label>How did you like the movie <strong>Turfnuts</strong>?</label><br />';
// And not this?
$message = '
<html>
<body>
<form action="http://mysite.com/process.php" method="post" target="_blank">
<label>How did you like the movie <strong>Turfnuts</strong>?</label><br />
...
</html>
';