It seems that Apress is offering some of their. I snagged a copy of their “Programmers Introduction to PHP 4, ” a 4 megabyte, 478 page PDF. It looks like the full version of the book. The download site also offers the source code. The book includes a plug for the newer edition of PHP5 and MySQL, released in June of 2004. This is a smart move on Apress’ part. Hope it pans out for them financially.