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Laravel News:
Install Microsoft SQL Drivers for PHP 7 in Docker
Jan 19, 2018 @ 12:51:05

The Laravel News site has a tutorial posted showing the Microsoft SQL Server users out there how to install the drivers and use it in a Laravel application in a Docker environment.

I started a project recently that required that I connect a Microsoft SQL Server database with a the final result when everything is up and running.

tagged: docker laravel microsoft sqlserver driver php7 tutorial

Link: https://laravel-news.com/install-microsoft-sql-drivers-php-7-docker

Oscar Merida:
Creating ZIP files and streaming the response with Silex
Jan 19, 2018 @ 11:28:44

On his site Oscar Merida has shared a post showing how to create a ZIP file and stream the response in a Silex-based application using the DOMPDF library and PHP's ZipArchive functionality.

Creating a zip file is easy and Rob Allen has you covered on that front to get you started. I needed to do this to create a zip file of PDF files generated by Dompdf. It turns out, you can add files to a ZipArchive object without actually creating the file if you can get the contents as a string.

The post includes the code to create the DOMPDF instance, load the HTML and render the result. From there the ZipArchive takes over and creates the archive from the PDF result. Finally the code takes the ZIP archive as input and pushes it out with a custom header to tell the browser to download it and streams back the raw ZIP contents.

tagged: tutorial silex dompdf pdf zip archive silex stream download

Link: http://oscarm.org/2018/01/stream-a-zip-file-via-silex/

Stitcher.io Blog:
Where a curly bracket belongs
Jan 19, 2018 @ 10:38:45

On the Stitcher.io blog they've shared a post that makes some suggestions about where a curly brace belongs and how that might differ from situation to situation.

Dedicating a whole blogpost to curly brackets might seem like overkill but I believe it's worth thinking about them. Not just because of one curly bracket, but because there's a bigger message in all this. Thinking about how we read and write code not only improves the quality of that code, it also increases our own and others ease of mind when working with it. It can improve the fluency of your work and free your mind to think about real important stuff.

[...] I wrote about visual code improvements a while back in a previous blogpost about cognitive load. Today I want to focus on that one little, yet very important character in our codebase: the curly bracket. More specifically, we're only going to look at the opening curly bracket, because there's little to no discussion about the closing one.

The post goes on to show several different example situations and where they think the "most correct" placement for the curly brace is. They alos talk about the difference between their use on constructors versus control structures. The main recommendation, however, is to keep things consistent across the codebase.

tagged: curly bracket constructor opinion location consistency

Link: https://www.stitcher.io/blog/where-a-curly-bracket-belongs

HHVM Blog:
HHVM 3.24 (End of PHP 5 Support)
Jan 18, 2018 @ 13:44:28

The HHVM project has made an announcement on their site about the latest update for the PHP language processor, v3.24 and how, among the list of changes, they're completely dropping support for PHP 5.

HHVM 3.24 is released! This release contains new features, bug fixes, performance improvements, and supporting work for future improvements. [...] 3.24 is the final release targeting PHP5; this includes source-level compatibility for PHP5 extensions (ext_zend_compat). We recommend migrating to Hack or PHP7.

As 3.24 is supported though 2018-12-17, this means that support will end at roughly the same time as PHP5 itself is scheduled to become unsupported (2018-12-31).

Other updates in the release include the retiring of support for Debian 7 Wheezy and Ubuntu 17.04 Zesty, the inclusion of "using" blocks and the addition of the XHP Attribute Spread Operator. You can find out complete details about this release from the HHVM blog.

tagged: hhvm php5 support release version project

Link: https://hhvm.com/blog/2018/01/16/hhvm-3.24.html

Matthias Noback:
Setting the stage: Code complexity
Jan 18, 2018 @ 12:29:07

In a post to his site, Matthias Noback talks about code complexity and how this relates to the overall "churn" (the rate of change) in a project.

Code complexity often gets measured by calculating the Cyclomatic Complexity per unit of code. The number can be calculated by taking all the branches of the code into consideration. [...] In general, we always strive for low code complexity. Unfortunately, many projects that you'll inherit ("legacy projects"), will contain code that has high code complexity, and no tests.

[...] Code complexity doesn't always have to be a big problem. If a class has high code complexity, but you never have to touch it, there's no problem at all. [...] What's really dangerous for a project is when a class with a high code complexity often needs to be modified. Every change will be dangerous. [...] Michael Feathers introduced the word "churn" for change rate of files in a project. Churn gets its own number, just like code complexity.

He then talks about combining these two numbers to provide an even more in-depth look at your code. It can give more insight into the relationship between "difficult to change", "number of changes" and the times a file has changed in the past. He mentions "it's okay" thinking (the current state is alright but not great) and shares some of his own hypotheses, observations and advice.

tagged: code complexity churn statistic evaluation combination

Link: https://matthiasnoback.nl/2018/01/churn-legacy-code/

Exakat Blog:
PHP assertions and their usage
Jan 18, 2018 @ 11:16:58

On the Exakat blog there's a post that covers assertions in PHP, a built-in tool the language provides to help perform simple value based evaluation against certain criteria.

PHP has a clever native debugging tool : the PHP assertions. In a nutshell, assertions are a function call to assert(), that triggers an error when a condition is not satisfied.

[...] Unlike debugging conditions, the assert() syntax has to be read in a positive way. When the condition, aka as the first argument, is satisfied, all is fine, and process goes on; when the condition is not satisfied, then an error is triggered: the message of the error is the second argument.

The post then gets into more detail about the assertions, noting that the result has to be positive and that they can be somewhat configured (basically turned on/off and the error level can be adjusted). It also covers some examples of things to test with assertions, how they should be treated as debugging and to avoid using them on resources outside the code (like database connections).

tagged: assertion usage language native tutorial introduction

Link: https://www.exakat.io/php-assertions-usage/

Sergey Zhuk:
Managing ReactPHP Promises
Jan 18, 2018 @ 10:50:01

In a new post to his site Sergey Zhuk has a tutorial showing you how to manage promises in ReactPHP. Since promises are fired asynchronously they can be difficult to manage and use their output across the application.

Asynchronous application is always a composition of independently executing things. In concurrency, we are dealing with a lot of different things at once. [...] So, to make concurrency work you have to create a communication between these independent parts to coordinate them. And here come promises. They are the basic unit of concurrency in an asynchronous application. They are the blood of the asynchronous application and move the results between different tasks across the code.

He then covers a few different situations and offers advice on how to more correctly handle them:

  • I don’t know exactly what the resolver will give me
  • I want to reject a promise but without throwing an exception
  • I want to run multiple tasks and when they all finish do something else
  • I have some pending tasks and want to continue once I receive the first feedback
  • I have some pending tasks and want to continue once the first one is completed
  • I have some pending tasks and want to continue once a certain number of tasks will be completed

Code is provided for each of the situations giving you an easy, ready to use example for your application. Most require only a few lines to get the job done and can be very useful in the right circumstances.

tagged: reactphp manage promises situation code example tutorial

Link: http://sergeyzhuk.me/2018/01/16/reactphp-managing-promises/

Christoph Rumpel:
How I redesigned my blog and moved it from Jekyll to Laravel
Jan 18, 2018 @ 09:38:54

Christoph Rumpel has a post to his site sharing the process he followed in migrating his blog site from Jekyll to Laravel. Jekyll is a Ruby based static site generator rather than a dynamic solution like Laravel provides.

One of my resolutions for 2017 was to redesign my blog. One week before the new year I faced myself with the challenge and thought to myself if this was still doable. Somehow I managed it and here it is. In this article I will explain the process and show you how I redesigned the blog with Tailwind CSS and moved it from Jekyll to Laravel with keeping almost the same performance.

He then walks through the entire process, breaking it down into a few different sections:

  • How to start
  • The backend stack
  • Toughest decisions are the ones about design
  • Tailwind CSS
  • Make it fast

For each of the sections there's code, screenshots and links to other resources included.

tagged: jekyll laravel migrate tutorial backend tailwind design css

Link: https://christoph-rumpel.com/2018/01/how-i-redesigned-my-blog-and-moved-it-from-jekyll-to-laravel