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SitePoint PHP Blog:
Poka Yoke – Saving Projects with Hyper-Defensive Programming
Jun 29, 2017 @ 10:55:11

The SitePoint PHP blog has a new tutorial posted that introduces the idea of "Poka Yoke" - basically defensive programming - and how to apply it in your own development processes.

When working in a medium to large team on the same codebase, it can sometimes become hard to understand each other’s code and how to use it. [...] It can be quite hard to remember how particular classes were intended to work, both on their own and in combination with each other. At that point, it becomes easy to accidentally introduce side effects or bugs without realizing it.

These mistakes might get caught in quality assurance, but there’s a realistic chance they might slip through. And even if they get caught, it can take a lot of time to send the code back and get it fixed. So how can we prevent this? Enter “Poka Yoke”.

The article then introduces the basic ideas of "poka yoke" and the two main parts: mistake prevention and mistake detection. It then gets more practical and suggests some PHP-specific things that can be done to prevent mistakes such as:

  • the use of type declarations
  • using value objects
  • making use of effective validation
  • returning null objects

For each there's a brief explaination and some sample code to help make the example more practical.

tagged: pokayoke project defensive programming practices tutorial

Link: https://www.sitepoint.com/poka-yoke-saving-projects-with-hyper-defensive-programming/

SitePoint PHP Blog:
Functional Programming with Phunkie: Building a PHP JSON Parser
Jun 09, 2017 @ 12:12:29

The SitePoint PHP blog has a new tutorial posted from author Marcello Duarte showing you how to use functional programming techniques in your applications with the help of the Phunkie library. Phunkie is a library that brings functional programming functionality to PHP. This article was originally published on the Inviqa blog.

In the first part of this series we explored parsers and combinators to help you start getting values from functional programming with PHP. We covered the basics using examples, and now we’ll move onto more sequencing and other strategies.

Continuing on, they work towards the goal of making a more useful end result, a JSON parser that returns a JsonObject. First, though, he goes through several different combinators, showing code examples for each: sequencing, choice, and recursive. He also covers the repetition pattern and how to integrate separators. Finally, with this groundwork laid, he gets to the JSON parser showing each step of the way, from reading in the JSON string to returning the object.

tagged: functional programming phunkie json parser combinator tutorial

Link: https://www.sitepoint.com/functional-programming-phunkie-building-php-json-parser/

Programming With Yii: Generating Documentation
Jun 02, 2017 @ 11:14:03

The TutsPlus site has posted the latest article in their "Programming with Yii" tutorial series, this time covering the generation of documentation for the API code that's been created to power the application.

Recently, I wrote about building REST APIs for your Yii application and expanded custom APIs for our startup series application, Meeting Planner.

In today's tutorial, I'll introduce you to Yii's apidoc extension, which automatically generates browsable documentation for your code. I'm going to use it to generate API documentation for Meeting Planner.

The tutorial starts off with helping you get the extension installed (via Composer) and links to a few examples of the end result. The tutorial then goes through how to add your own comments to your current files that will be output in the final result directly. This includes open text descriptions and other DocBlock information. It then shows how to generate the documentation, how to navigate the resulting HTML pages and some examples of what it will look like for the current code.

tagged: programming yii2 generate documentation tutorial series package

Link: https://code.tutsplus.com/tutorials/programming-with-yii-generating-documentation--cms-27899

SitePoint PHP Blog:
Functional Programming with Phunkie: Parser Combinators in PHP
May 03, 2017 @ 10:53:08

The SitePoint PHP blog has posted a tutorial by Marcello Duarte showing you how to use functional programming in PHP with the help of the Phunkie library.

Phunkie is a library with functional structures for PHP. In this tutorial, Phunkie creator Marcello Duarte, head of training at Inviqa, explains how to create Parser combinators using the functional library.

[...] Learning functional programming means immersing yourself in a new paradigm, which can be challenging. It requires a totally different mindset for approaching problems. So, by the time you can use functional programming to solve real-world problems, you’ll have spent hours grasping the new thinking or getting clued-up on the theory.

In this tutorial, my aim is to help fast-track your journey by going over my implementation of Hutton & Meijer’s Monadic Parser Combinators.

He starts off by defining two terms that will be used through out the code: parsers and combinators. He shares a code example of a combinator and then moves on to examples of primitive parsers and parser combinators. Each section includes the code you'll need to use (making use of Phunkie) to make the functional magic happen.

tagged: functional programming phunkie tutorial parser combinator

Link: https://www.sitepoint.com/functional-programming-with-phunkie-parser-combinators-in-php/

35 programming habits that make your code smell
Apr 25, 2017 @ 11:11:47

The Tech Beacon site has posted a list of thirty-five programming habits that make your code "smell", little things that you might do every day without knowing they could be causing issues with the long term maintenance of your code.

Bad habits are hard to break and even harder if you don't realize that what you're doing is undermining your work. If you know but don't care—that would be the worst. But you're here, aren't you?

As a programmer, I've seen a lot of poor practices, not just around code, but also around teamwork skills. I've been guilty of practicing many of these bad habits myself. Here are my top 35 bad programming habits, organized into four categories: code organization, teamwork, writing code, and testing and maintenance.

They've broken up the bad habits into different categories to make it a bit easier to consume:

  • Code organization
  • Teamwork
  • Writing code
  • Testing and maintenance

I think just about any developer out there as, at one time or another, fallen into the trap of one or more of these bad habits.

tagged: thirtyfive habits bad practices developer programming list

Link: https://techbeacon.com/35-bad-programming-habits-make-your-code-smell

How to Program With Yii2: Running Cron Services
Mar 30, 2017 @ 12:19:26

TutsPlus.com has posted the latest tutorial in their "Programming with Yii2" series showing you how to work with cron services to periodically run scripts in your application.

In this Programming With Yii2 series, I'm guiding readers in use of the Yii2 Framework for PHP. In today's tutorial, I'll share with you how to take advantage of Yii's console capacity to run cron jobs.

In the past, I've used wget in my cron jobs—a web accessible URL would run my background tasks. This raised security issues and has some performance problems. While I addressed some ways to mitigate risks in our startup series' episodes on security, I had hoped to transition to console-driven commands. And with Yii2 it's fairly straightforward.

He starts with a brief look at what a "cron" is for those that may not be familiar and how it works on linux-based systems. He then gets into the use of console "cron" commands using the Yii2 framework's own functionality to create a "cron controller" that performs Twitter operations on "frequent", "quarter" and hourly measurements. He shows how to update the crontab file to call the commands instead of making the web requests. He ends this tutorial with an issue to consider regarding different namespaces when using the commands versus web requests.

tagged: programming yii2 series cron services tutorial

Link: https://code.tutsplus.com/tutorials/how-to-program-with-yii2-running-cron-services--cms-27508

SitePoint PHP Blog:
Parallel Programming with Pthreads in PHP – the Fundamentals
Mar 24, 2017 @ 10:40:07

The SitePoint PHP blog has posted a tutorial that introduces some of the fundamentals of parallel programming in PHP. In their examples they make use of the pthreads extension to help bring simpler parallel programming to the language (otherwise you'd have to do odd things with shell commands and foreground/background controls).

PHP developers seem to rarely utilise parallelism. The appeal of the simplicity of synchronous, single-threaded programming certainly is high, but sometimes the usage of a little concurrency can bring some worthwhile performance improvements.

In this article, we will be taking a look at how threading can be achieved in PHP with the pthreads extension. This will require a ZTS (Zend Thread Safety) version of PHP 7.x installed, along with the pthreads v3 installed.

Despite the article being about the use of pthreads, it starts out talking about when not to use it, possibly saving you some time in the long run. With that out of the way it then starts in on the handling of "on-off tasks" with an example of fetching the "title" value from Google.com. This is then enhanced showing how to use the "Threaded" base class to define other classes that can be used inside of threads. The article moves on covering other topics including:

  • recycling threads
  • pthreads and (im)mutability
  • synchronization of threads

Each item in the list comes with plenty of example code showing you how to create the classes that execute the threads and the output they should generate.

tagged: parallel programming fundamentals tutorial introduction pthreads extension

Link: https://www.sitepoint.com/parallel-programming-pthreads-php-fundamentals/

What are some things you wish you knew when you started programming?
Mar 21, 2017 @ 10:24:44

Leonid Mamchenkov has linked over to a great thread over on Quora that asks the question "[What are some things you wish you knew when you started programming?


The post is originally from Ken Mazaika, CTO, Co-founder & Mentor @ thefirehoseproject.com but it has expanded way beyond his original list of 27 things. There's comments sharing everything from personal experiences out to their own lists of things they wish they knew. Topics mentioned include:

  • the "cognitive burden"
  • the importance of getting away from the screen sometimes
  • the value in listening, not just hearing, your colleagues
  • thinking about security at all times
  • learning the "why" of coding, not just the "how"

There's a lot more in this post so get over and start reading. There tips in here for everyone, both those new to programming and those that have been doing it for years.

tagged: wish you knew programming opinion experience quora

Link: https://www.quora.com/What-are-some-things-you-wish-you-knew-when-you-started-programming

PHP 7.2: The First Programming Language to Add Modern Cryptography to its Standard Library
Feb 14, 2017 @ 12:10:29

In this post to the dev.to site Scott Arciszewski talks about a milestone in the PHP language, it being the first language to "add modern cryptography to its standard library" (PHP 7.2).

Last week, the voting phase closed on an RFC to add libsodium to PHP 7.2. The result was unanimous (37 in favor, 0 against).

When version 7.2 releases at the end of the year, PHP will be the first programming language to adopt modern cryptography in its standard library.

He goes on to talk about what "modern cryptography" is describing concepts like secure primitives and showing example of the high-level API the integration will provide. The post finishes out with a rebuttal against some of the nay-sayers around PHP and its reputation for security. They say that there's "no way PHP is more secure than " so Scott compares this libsodium addition to some of the features in other languages and where they're lacking in relation.

tagged: programming language cryptography standard library libsodium php72

Link: https://dev.to/paragonie/php-72-the-first-programming-language-to-add-modern-cryptography-to-its-standard-library

Three Devs & A Maybe:
Aha! Moments with Steven Proctor
Feb 13, 2017 @ 12:38:01

The Three Devs and a Maybe podcast, with hosts Michael Budd, Fraser Hart, Lewis Cains and Edd Mann, has posted their latest episode - Aha! Moments with Steven Proctor.

In this weeks episode we are lucky to have Steven Proctor back on the show. We start off discussion by congratulating him on 82 episodes of Functional Geekery, and the commitment it takes to do a podcast and not just ‘podfade’. From here we move on to highlight any commonalities he notices with people getting into FP, how he stays on-top of the latest advancements and how he finds the guests he wishes to speak to. This leads us on to compare learning functional concepts within a language you already know vs. in a totally different language which is rooted in the principles. Finally, we chat about interesting projects that are on his radar and advice that he has for people who wish to begin exploring FP.

You can listen to this latest episode either using the in-page audio player or by downloading it directly. If you enjoy the show, be sure to subscribe to their feed and follow them on Twitter for updates when new shows are released.

tagged: threedevsandamaybe podcast stevenproctor aha functional programming

Link: http://threedevsandamaybe.com/aha-moments-with-steven-proctor/