Hi Larry,
First of all, thanks for the book. It's being surprisingly easy to follow.
I'm currently going through chapter 07 (arrays) and I was doing the excercise in "Transforming Between Strings and Array", I first created my list.html file and then on the list.php, this is what I wrote (HTML omitted):
<?php
//Get text from form
$sorted_words = explode(' ',$_POST['words']);
//Sort values
sort($sorted_words);
//Turn array back into a string
$string_words = implode("<br />",$sorted_words);
//Prints string
print "<p>Alphabetized version of your text: <br />$string_