It has been a while, but here is part 4 of the PHP Quiz series! A few questions to crack your brain about, or perhaps you know them all? Try them and find out! Also do read the idea behind these quizzes, here: The PHP Quiz series

In this quiz he tests your knowledge of class visibility, fluent method handling, class extension, strptime and a tricky "for" loop. Take the quiz and see how you do.

Welcome to another part of the PHP Quiz series, again some interesting questions to crack your brain about. If you have some nice additions or questions, be sure to leave a comment. Enjoy part three!

Questions in this edition cover unset, form output, working with strings, references, globals and working with class inheritance. You can check out part one and part two for more brain teasing fun.

A short quiz this time, but that doesn't make it less fun. Do you know the answer to all of them? Get a cup of coffee and kill 10 minutes with round two... As always, think of the answer before you execute the code or look it up. You can find round one here.

This one has questions on arrays, ArrayAccess, references, operator precedence and nesting structures. There's no answer key, so you'll just have to test it out if you want to see the answer.

Our latest Adobe-sponsored giveaway is live, and up for grabs this time are copies of Flex Builder 3. Just read our brand new article, Pimp Your PHP App With Flex - then take the quiz to enter the draw! You've got 7 days to take the quiz. Enter your details and you'll be in the running to win one of three copies of Adobe Flex Builder 3.

The tutorial looks at creating a first application with a Flex front end and a PHP backend - a script that accesses an API that returns either an XML or JSON formatted message.

The last couple of weeks have been quite the experience for me. I was part of a big layoff at my former company, which was interesting. I've never been in that position before, and it's hard not to take it personally. [...] Before the face-to-face portion, I chatted with the owner and head programmer on a conference call, and they ended up sending me a technical assessment quiz.

In the quiz, there was one question the prompted him to come up with his tips - ten things that you can do to keep your code clean, lean and easy to maintain. His tips include things like "use single-quotes around array indexes", "don't use open short tags" and "document your code". Some of the suggestions don't make that much of a difference, but others (like the documentation one) can make the world of difference down the line.

As you can see [below], we already got some examples and hope that everybody who ordered in advance got their examples by now, too. If you don't, stay tuned they should arrive soonish. We are both absolutely amazed by the printing quality and the overall impression of the book.

To win your own copy of the book (German) head over to this quiz page on the DynamicWebPages.de website and answer three simple questions.

My good friend Avigail was kind enough to cough up some copies of Zend Studio and even a license for Zend Guard. [...] We've got a quiz (No, not a survey, a quiz!) to test your mad Zend Studio skillz. If you don't have said skillz, I'd suggest downloading the Free 30 Day Trial of Zend Studio and develop them.

Once you are a Studio-Fu master, take the quiz by clicking on this link.

First prize is a Zend Studio perpetual license + Zend Guard annual license, second prize (3 winners) are licenses for Zend Studio Professional, and third prize winners (200 winners) get a 50% off coupon for a purchase of Zend Studio.

If you need a little explanation on the PHP Security Quiz by Mayflower, just read the extended entry. Just as a quick hint for the answers, I decided to blog about which answer is right - and why.

There's only four questions to the quiz, but it's good that he explains each. Some of them, especially dealing with regular expressions and Javascript attacks need a bit of explanation.

For those that couldn't make it out to the conference, here's the questions that match up with those answers.