On PHP.net today they've announced the release of the latest Release Candidate in the PHP 5.5.x series - PHP 5.5.0RC2.

The PHP development team announces the availability of the second release candidate of PHP 5.5. This release fixes some bugs against RC1 and improves overall stability. [...] Please help us to identify bugs in order to ensure that the release is solid and all things behave as expected. Please test this release candidate against your code base and report any problems that you encounter to the QA mailing list and/or the PHP bug tracker.

Issues corrected include a segfault when memory was used up, an issue with mbstring in PHPT tests in Windows x64 and a problem with custom exceptions. You can find the full list of changes in the NEWS file. Please download this latest release candidate (Windows here) and test it out on your systems.

On her blog Lorna Mitchell has posted an example of a basic generator written in PHP, a feature of the upcoming PHP version 5.5.

I really like the generators feature that's arriving in PHP 5.5, and since we're now into release candidate releases, it's actually not that far away. I've been speaking on this topic and I thought I'd share my trivially simple code example from my slides.

She includes an example of a very basic generator using the new "yield" keyword and how to implement it in a simple foreach loop. There's also a little talk about when is a good time to use generators in your applications (two examples: complex number calculation and working with large data sets a chunk at a time). For more information on how these generators will work, check out this page in the PHP manual.

In this new post to his site Rob Allen shows you how to implement a simple logging method for catching exceptions in your Zend Framework 2 application.

I recently had a problem with a ZF2 based website where users were reporting seeing the error page displayed, but I couldn't reproduce in testing. To find this problem I decided to log every exception to a file so I could then go back and work out what was happening. In a standard ZF2 application, the easiest way to do this is to add a listener to the 'dispatch.error' event and log using ZendLog.

He uses an event listener to attach a service that contains a "logException" method. This method uses the ZendLog component to write out the error message to a local log file including a backtrace of where the issue occurred.

On his site today Lukasz Kujawa has a post that compares some performance benchmarks of several popular PHP frameworks including Slim, CodeIgniter, Laravel, Symfony2 and Zend Framework 2.

There are many assumptions around performance of different PHP frameworks. I frequently hear strong opinions about superiority X over Y in this context. There are companies writing new PHP frameworks from scratch because available solutions are too slow for them. What does it really mean? Does the framework performance matters? Before answering this questions lets check how slow is your framework!

He took the "quick start" projects provided for each of the examples and ran some tests with the Apache Benchmark (ab) tool against EC2 instances, all configured the same way. The results weren't overly surprising with Slim beating the others hands down (it's a micro-framework after all) and Kohana and CodeIgniter coming in second and third. The frameworks with more overhead like Zend Framework and Symfony ranked some of the slowest.

On 7PHP.com there's a new post that interviews a PHP community member, Eric Hogue, about his experience with the Zend Certified Engineer exam.

This is the 3rd set of Zend Certification Tips and Advice to help anyone taking either of the two Zend Exams powered by Zend Technologies: the Zend PHP Certification Exam and/or the Zend Framework Certification Exam. The aim being to help people who want to sit for those exams and inform them what it is all about & what to expect by hearing it from (pro) PHP Guys who have already been through it, that is => Hear It From Zend Certified Engineers!

He starts off with some general questions to Eric about the exam and its structure and how he prepared himself for it. He mentions some of the resources he used to study and what kind of topics to pay attention to. There's also a few quotes included at the end giving another perspective on the exam (specifically, some frustrations).

Vance Lucas has created a "validation library that dosen't suck" and posted about it to his site - his Valitron library.

Valitron is a simple, minimal and elegant stand-alone PHP validation library with NO dependencies. Valitron uses simple, straightforward validation methods with a focus on readable and concise syntax.

He created the library because of frustration with other tools that had (sometimes major) dependencies on other packages. All he wanted was something lightweight and easy to use that was flexible about how it handled its validation rules. Valitron lets you apply a validation (like "required") against multiple fields in the provided data and includes checks for things like length, valid IP, active URL, alpha-numeric, date format and regular expression match. You can also add custom validation rules via a callback/closure.

In a new post to PHPMaster.com today, Rakhitha Nimesh takes a look at Faker, a tool that can be used to generate random test case data as a part of your workflow.

Testing is an iterative part of the development process that we carry out to ensure the quality of our code. A large portion of this entails writing test cases and testing each unit of our application using random test data. Actual data for our application comes in when we release it to production, but during the development process we need fake data similar to real data for testing purposes. The popular open source library Faker provides us with the ability to generate different data suitable for a wide range of scenarios.

Faker uses built-in data providers like "Person", "Company", "DateTime" and "UserAgent" to give you randomized output from the data sets you define. Code is included showing how to create the provider in your objects, extending the correct provider and making a request for a property. A real-world example is also included about testing an email marketing engine for address, title, name and content. There's also a little bit added at the end showing how you can increase the randomness of the results returned by "seeding" the Faker engine.

7PHP.com has posted a new article where they asked Lorna Mitchell for some of her advice for those wanting to take the Zend Certified Engineer exam, including what the test is like and how you can prepare effectively.

This is the 2nd set of Zend Certification Tips and Advice to help anyone taking either of the two Zend Exams powered by Zend Technologies: the Zend PHP Certification Exam and/or the Zend Framework Certification Exam. The aim being to help people who want to sit for those exams and inform them what it is all about & what to expect by hearing it from (pro) PHP Guys who have already been through it, that is => Hear It From Zend Certified Engineers!

They start with a little background on her and her experience with PHP and get quickly into the questions about the exam. Topics include things like:

• What the test is about and hopes to achieve
• Some things you can do to prepare
• A recommendation to make the most of your time exploring topics you might be weak in
• Whether or not the ZCE training classes help in the learning process

You can read the rest of the interview here.

On PHP.net today they've announced the tagging and release of the latest alpha for the PHP 5.5.0 series - PHP 5.5.0 alpha4:

The PHP development team announces the release of PHP 5.5.0alpha4. This release fixe some bugs from alpha3 and add some new features. All users of PHP are encouraged to test this version carefully, and report any bugs in the bug tracking system.

There's new improvements included in this non-production release including class name resolution with "class" keyword and the DateTimeImmutable class. You can see the NEWS file for the complete list of changes. If you'd like to help test it out, you can download the preview release here (or here for Windows users).

If you'd like to help with testing for the upcoming PHP 5.5.0 version, they've announced the release of the latest alpha on the PHP.net site, ready for download and test execution.

The PHP development team announces the immediate availability of PHP 5.5.0alpha2. This release adds new features and fix some bugs from alpha1. All users of PHP are encouraged to test this version carefully, and report any bugs in the bug tracking system.

You can see the full list of the changes in 5.5.0 (so far) in the NEWS file including things like using empty on return values, enabling systemtap by default for dtrace probes and optimized variable accessing. They need your help to make this upcoming release even better, so if you'd like to help out and test, go grab the download (Windows builds).