created on 01 Mar 2007, by Syndication, read more…
As I sat down to edit “Core Web Application Programming with PHP and MySQL”, I would sometimes find errors in the text so blindingly obvious and stupid that I would question whether or not I was truly qualified to write such a book. And yet, after talking with some other people who write books (and recalling days when I wrote huge amounts of code), it seems that this is all common and with much proof-reading and the hard work of some friendly reviewers, I was able to write a book of extremely high quality.
Of course, that just meant I would be even more devastated when the first technical errors WERE found in the book.
There have been a couple, but they’re not that killer serious.
Chapter 21 Error
In Chapter 21, where the book discusses writing your own output handler, the constant in the $_SESSION array to check is HTTP_ACCEPT_ENCODING, without the letter ‘S’ on the word accept.
The Accompanying Source Code
There are a couple of errors in the source code, the most glaring of which DID get fixed, but never made it on to the shipping CD ROM (d’oh!). In the SimpleBlog sample, in the file lib/entrymanager.inc, the class DBManager is accidentally misspelled DBMananager. Just fix it and change it back to the correct spelling and the sample will compile fine under PHP 5.0.x (x <= 4).
The other problem with the samples is that some new things have appeared in newer versions of PHP 5.0.y (y >= 5). PHP now defines a class called InvalidArgumentException, which conflicts directly with the class I have defined using the same name. The easy fix for this problem is to simply change the name of the class slightly, to something like MyInvalidArgumentException or some such thing.
To save you the hassle of tracking down and fixing all of these problems, I have put a new copy of the book source code up on the chipmunkninja.com servers. You can download these from here:
phpwasrcupdate_2005-12-01.zip.
As always, if you see any other problems or errors in the book, or just want to comment on it, please feel free to drop me some mail.
