PHP: Handy little Snippet for Multiline Text Box

<?
// Get the message String
$rawString = $_POST['comments'];
 
// Split the string into pieces for processing
$pieces = explode("\n", $rawString);
 
// First element is the subject line
$subject = $pieces[0];
 
// Take the array, delete the first entry, So we can pass it to $message
$messagePieces = array_slice($pieces, 1);
 
// Replace the \n or add a <br /> if you like.
$message = implode("<br />", $messagePieces);
echo "Subject: ". $subject;
echo "<br />";
echo "Message: ". $message;
?>
<form action="<? echo $_SERVER['php_self'] ?>" method="post">
	<textarea id="comments" name="comments">Your message</textarea>
	<input name="send" type="submit" value="Send" />
</form>