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Marc Morera:
Defeating Expression Language
May 18, 2015 @ 08:38:27

Marc Morera has a new post to his site wanting to help you defeat Symfony's expression language and perform the same functionality, just more on the code side (another option).

How beautiful Expression Language definitions are, right? I mean, inserting that complex expressions in a Dependency Injection configuration file is so nice and fast if you need to inject the result of a method in a service (one of the multiple examples we can see). [...] This is not a bad idea, really, but because we are engineers and we should have as much information as possible in order to be able to choose between the best option, always, I will show you another way of defining this piece of code.

He shows how to write some code using the Factory design pattern structure to reproduce a bit more complex piece of expression language. He shows the setup of the services.yml file to define the "managers" and classes/services to be injected. He also notes that this removes the need for the "symfony/expression-language" dependency and makes things more portable in the future.

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expression language symfony alternative factory dependencyinjection services configuration

Link: http://mmoreram.com/blog/2015/05/18/defeating-expression-language/

This Programming Thing:
Creating Your Own Standard in PHPCS
May 12, 2015 @ 08:55:30

On the This Programming Thing blog there's a recent post showing you how to define your own "sniff" settings for the popular PHP_CodeSniffer tool. The codesniffer lets you define standards that need to be in place for all code in your application and notifies you of violations.

At Zimco, we've started working on standardizing our coding but we ran into a little problem while we tried to automate the process of making sure our code adhered to that standard. [...] I think we get into our own way of doing things and everything else is wrong. This code makes me feel irrationally angry (so angry I'm having a hard time not fixing itů). Ultimately, the best way to fix these kinds of formatting problems is to sit down and discuss what's best and have everyone stick to the same set of standards.

They talk some about the place for PSR in coding standards (specifically PSR-2) and the fact that there's already "sniffs" provided to check against those rules. However, they point out that running this against a non-PSR-2 codebase can be a mess and show you how to customize your own standard to more match your current state. They use an XML configuration file to update the tab width setting to four spaces and then apply the PSR-2 standards. They also show how to exclude certain rules and mention a handy plugin you can use in Sublime Text to keep your code within standards.

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standard phpcs phpcodesniffer sniff configuration xml psr2 update exclude

Link: http://www.thisprogrammingthing.com/2015/creating-your-own-standard-in-phpcs/

Knp University:
Symfony Service Expressions Do things you thought Impossible
May 06, 2015 @ 12:50:13

The Knp University site there's a new post showing you an interesting thing you can do with Symfony2 service definitions - use more complex expressions to load and supply service dependencies.

[Using] the @= means that you're using Symfony's Expression Language, which let's you mix dynamic logically into your normally-static service definitions. Normally, if you want to inject a repository, you need to register it as a service first, using a factory. And while that's fine (and probably better if you're injecting the factory a lot), using the expression language is well, kinda cool.

They include an example of the compiled container code that would be produced from the example expression. They also show how to use the same expression language to read configuration information and pass it in as an argument to the created service. The show the pull of a configuration setting "email_from_username" and how to inject it via the expression language.

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service expression language tutorial introduction configuration example

Link: http://knpuniversity.com/blog/service-expressions

DZone.com:
Understanding php.ini
April 03, 2015 @ 11:05:55

The Dzone.com site has a recently posted tutorial helping you understand the php.ini, the main configuration file PHP uses to set up its own internal features and settings.

our php.ini file provides a considerable amount of power over the behavior of your PHP application ecosystem. Let's jump into some of the most common declaratives and discuss how they impact your application performance and behavior. I won't go into an explanation of each setting that is available, but I'll cover the fundamental options that you should be aware of. Please keep in mind that changing any of the settings on in your php.ini can and may very well change the behavior of your application, whether positive or unfavorable. Please use caution when adjusting your settings, consult with your team, do your research, understand the implications, and, of course, test, test, and test again before deploying anything into production!

He starts with a brief introduction to what the php.ini file is and how you can use the phpinfo function to find the current settings in HTML form (on the command line it's "php -i"). He then goes through and covers some of the basics from the standpoint of security, memory handling and some general settings.

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understand phpini configuration file introduction

Link: http://php.dzone.com/articles/understanding-phpini

NetTuts.com:
Protecting Your Keys From GitHub
March 05, 2015 @ 12:03:05

On the NetTuts.com site there's a new post talking about protecting your keys when using a public site like GitHub. This relates to an easy thing to forget - removing hard-coded credentials from code before pushing it public.

In December 2014, Slashdot ran an alarming story Bots Scanning GitHub To Steal Amazon EC2 Keys, based on developer and blogger Andrew Hoffman's experience trying out Ruby on Rails on Amazon with AWS S3. He inadvertently committed an application.yml file with his AWS keys. [...] It's an easy mistake and most of us have probably done a similar thing at one point or another. And it's not just AWS keys that are at risk. As our use of cloud-based services increases, the expanding use of a broad variety of service API keys can be leveraged by hackers and spammers alike.

He goes through a solution he's found to help protect those credentials, in this case working with the configuration of a Yii framework-based application. He starts with a mention of .gitignore but points out that it could have unexpected results from "quirks" in its handling. He suggests a different option - using a configuration file that lives someplace outside of the main git directory and can be referenced directly from inside the application. He provides two kinds of examples: one using a PHP-based configuration and another based on an INI file. He finishes the post with a mention about WordPress plugins and the fact that they're (usually) stored in a database and open to exposure if a SQL injection vulnerability is found.

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github protect keys commit public exposure configuration file gitignore

Link: http://code.tutsplus.com/tutorials/protecting-your-keys-from-github--cms-23002

Benjamin Eberlei:
Integrate Symfony and Webpack
February 26, 2015 @ 10:21:40

In his latest entry Benjamin Eberlei shows how he integrated Symfony and Webpack, a tool that makes it simpler to package up multiple assets (like Javascript or CSS files) and reduce them down to combined files, reducing the overhead on page loads.

Asset Management in Symfony2 is handled with the PHP based library Assetic by default, however I have never really connected to this library and at least for me it usually wastes more time than it saves. [...] While researching about React.JS I came across a tool called Webpack which you could compare to Symfony's Assetic. It is primarily focussing on bundling Javascript modules, but you can also ship CSS assets with it.

He talks about some of the main benefits to using the Webpack tool including a built-in web server to serve up the assets and a "hot reload" plugin that refreshes when assets change. He then gets into a more practical example, showing how the tool works with a typical asset structure in a Symfony application. He shows how it uses the internal server to prevent the need for a complete rebuild each time. He also shows how to install and configure it through Symfony and loading the Javascript file in your Twig template. Finally he shows how to run a build, the resulting output and the integration he mentioned with React.js.

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symfony asset webpack tool tutorial introduction configuration install

Link: http://www.whitewashing.de/2015/02/26/integrate_symfony_and_webpack.html

Servers for Hackers:
Deployment with Envoy
February 11, 2015 @ 13:09:31

The Servers for Hackers site has a new post walking you through the steps to deploy a PHP application with Envoy, the Laravel-based ssh task runner to make automated deployment simpler.

We'll use Laravel's Envoy to deploy a PHP application to a production server. This will make a new release directory, clone the repository into it, run any needed build steps, and then finally swap the new code out with the older code, so that Nginx and PHP-FPM serve the new code.

They walk you through the full setup you'll need to get the deployment working including generating ssh keys, installing Envoy globally and making the first Envoy configuration file. With that in place and working, he enhances it with quite a few more steps including checking out a new version of the repository to a "release" directory, executing Composer to pull in needed libraries and changing the symlink to point the document root and the freshly installed version. He also includes the configuration for the Nginx server to set up a Laravel-based application inside of a Vagrant VM instance.

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Link: https://serversforhackers.com/deploy-envoy/

Dutch Web Alliance:
Capifony, Continuous Deployment and Symfony's parameter.yml
December 15, 2014 @ 12:10:50

On the Dutch Web Alliance site today they've posted a tutorial about their use of Capifony for Symfony application deployment and how it relates to updating the "parameter.yml" file. They describe their current deployment process, how it works with the different environments and how they solved the one manually problem they had.

The actual deployment is thus dealt with by capifony. This is a plugin for capistrano written for deploying Symfony applications. [...] Capifony automatically deals with cloning the correct branch on the servers, installing dependencies through composer, migrating database versions etc etc. Basically we don't have to care about anything else. However, there is one single thing that still keeps on bugging us: when we want to upgrade to a new parameters.yml, we must do this manually. This means that our builds will break when we deploy a version that requires an updated parameters.yml until we manually solve the issue.

To get around this manual issue, they decided on creating a new Capifony task that does an upload/download of the parameters file, depending on the environment.The continuous deployment can then push or pull the file as needed in a more automatic way.

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continuous deployment paramatersyml configuration capifony capistrano task

Link: https://dutchweballiance.nl/techblog/capifony-continuous-deployment-symfonys-parameter-yml/

php[architect]:
Build a VM for Drupal 8 with Vagrant
November 26, 2014 @ 10:22:22

A new tutorial has been posted on the php[architect] site today showing you how to build a VM for Drupal 8 with the help of Vagrant.

At this year's php[world] hackathon, I spent my time getting a Vagrant machine configured to run Drupal 8. I know there are other options, like Acquia's own Dev Desktop, or even Zend Server. However, I like using Vagrant to run my LAMP stacks, especially on OS X. I've never been able to easily run xAMP on non-Linux machines. Installing MySQL can be a pain, system updates can change the version of PHP you're running, and some PHP extensions are really difficult to build-even with Homebrew. Vagrant simplifies getting a working development environment running by automating the provision of a virtual machine for you, usually with a tool like Chef, Puppet, or Ansible.

Oscar (the author) took advantage of some time at the php[world] hackathon to create the necessary files for building this environment. He walks you through the steps to creating the basic vagrant file with "config" options (explaining each one) and walks through the setup of additional options, software like Apache and Drupal. He then sets up the Ansible configuration to create the box, run the provisioning and configuration of the resulting server. Finally, he shows the result of the install if everything was successful.

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drupal8 vagrant vm virtualmachine tutorial introduction configuration provision

Link: http://www.phparch.com/2014/11/build-a-vm-for-drupal-8-with-vagrant/

Dejan Angelov:
Experimental upgrading to Laravel 5 How I did it
November 24, 2014 @ 12:57:18

In a recent post Dejan Angelov shares the process he went through to upgrade an application to Laravel 5, yet to be released (at least at the time of this post).

Over the past weeks, Taylor introduced many great changes and new features that we'll be able to use in the new version, firstly numbered 4.3 and later 5. According to the framework's six month release cycle, it should had hit stable late this month or in early December. Because of that, I started to play with it and to apply the changes to make my application use it.

However, a couple of days ago, Taylor wrote a blog post on the Laravel's blog saying that because of the importance of this release, the release date will be postponed to January. Considering this, everything you'll read here MUST NOT be applied to applications that are currently in production.

He starts with some of the major differences, including changes in the dependencies required and the removal of the "start.php" file for bootstrapping the application. He talks about the changes in startup and shutdown as well as autoloading. He looks at directory structure changes and the addition of a base namespace. He then gets into how to fix these issues, one at a time, including code and configuration changes that need to be made. This includes updates to the facades, changes for middleware, environment configuration, pagination and routing. There's lots of other changes happening with Laravel 5, so be sure to check out the full post if you're interested in the steps you might need to take when this latest version is released.

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upgrade laravel5 framework change configuration code fix

Link: http://angelovdejan.me/2014/11/22/experimental-upgrading-to-laravel-5-how-i-did-it.html


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