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SitePoint PHP Blog:
Appserver – Server Configuration, Dir Structure and Threads
Feb 01, 2016 @ 09:25:05

The SitePoint PHP blog continues their series looking at the features of the appserver.io project in this second post covering its server configuration, directory structure and how it handles threads during processing.

In the first part of our Appserver series, we discussed the very high level differences of Appserver’s architecture to standard web server stacks and got you up and running with an Appserver instance.

[...] In this part, we will be exploring the Appserver architecture a bit more in depth. We will go through the concepts of the different contexts and the parts of Appserver you get out of the box, which cover some of the ground most of the popular PHP frameworks offer. We will also configure the web server and look into an application’s structure. Once we are finished, you should have a fair understanding about Appserver’s contexts in relation to threading, the web server, and its setup.

They start with the threading functionality, showing how "contexts" come in to play and how the code executes as long as this context is alive. The post then gets into some of the code-related differences with using appserver such as extra annotation handling and AOP (aspect oriented programming) practices. From there they get into the tech behind the scenes: configuring the web server, setting up a virtual host and pointing it at the sample application. Finally they talk about the servlet engine and the server's directory structure underneath.

tagged: appserverio project opensource server configuration directory structure thread processsing

Link: http://www.sitepoint.com/appserver-server-configuration-dir-structure-and-threads/

ProDevTips.com:
Proxying with PHP in Ubuntu 14.04 (Apache 2.4, PHP 5.4+)
Jan 21, 2016 @ 10:46:38

The ProDevTips.com site has a tutorial posted showing you how to proxy requests with PHP on Ubuntu using Apache 2.4 and PHP version 5.4 or later.

I’ve just had to evade a Russian block of one of my employer’s sites, let’s call it CasinoX. Presumably they had blocked both www.casinox.com and www.casinox.com’s IP address (which is a Cloud Flare IP btw).

Simply pointing ru.casinox.com to the real IP address of www.casinox.com’s server was a not a viable solution though as that would expose the real IP publicly which is a no-go in the online casino business as it is basically an invitation to be DDoS’ed.

The solution they came up with was to set up a server that operates as a proxy and sends all traffic to the actual web server, save the assets (images, Javascript files, etc). They include the changes you'll need to the .htaccess configuration on the proxy server to forward the requests. Then they show the updated version of your virtual hosts configuration to match these changes. From there the rest of the handling lives in PHP. They include the code for the index.php proxy handling, a Proxy class that makes curl requests to the actual web server and an ip_in_range function to get the actual IP of the user/client making the request.

tagged: proxy server apache webserver tutorial htaccess virtualhost

Link: http://www.prodevtips.com/2016/01/16/proxying-with-php-in-ubuntu-1404-apache-24-php-54/

SitePoint PHP Blog:
Setting up PHP 7 Servers with Laravel Forge and DigitalOcean
Jan 07, 2016 @ 11:11:38

The SitePoint PHP blog has another new article from editor Bruno Skvorc showing you how to set up PHP 7 servers in two different ways: one the DigitalOcean platform and the other using the Laravel Forge service.

In this quick guide, we’ll cover two ways to bring a PHP 7 server online on DigitalOcean – a popular VPS provider. We’ll use two approaches, the latter of which will be applicable to any Ubuntu installation whereas the former will only work on DigitalOcean.

He starts with a brief description of what Laravel Forge is for those not familiar with it and how to use it to set up your new server instance. Screenshots of the interface are included showing the setup of the instance, backups, configuration of the server and how to link it to a repository. Then he gets into the more "manual" installation, working with a simple low-tier DigitalOcean droplet to secure and configure it with similar kinds of features: PHP 7 installed and working, Nginx and a fresh checkout of the repository.

tagged: php7 server tutorial setup laravelforge digitalocean deploy repository

Link: http://www.sitepoint.com/setting-up-php-7-servers-with-laravel-forge-and-digitalocean/

PEAR Blog:
PEAR server fully restored
Dec 15, 2015 @ 10:33:14

As is mentioned in this post to the PEAR blog the server hosting the packages and website has been fully restored as of December 11th and should be 100% functional again.

Our server sponsor eUKhost quickly provided us with a new machine after we told them the old had failed, and the last two weeks were spent setting it up to provide the same functionality as before.

This includes not only the pear.php.net site but also the bug tracker, manual and downloads handling. They share a bit about why it took so long to correct (mostly having to do with technological difficulties with the server provided by the host). While backups did exist, they were only for the packages themselves and XML file structure. Unfortunately this did not include the website and blog database or patch files in the bug tracker. The remainder of the post lists several other smaller things that went wrong in the process, all adding up to plenty of difficulties for Christian as he battled to get the server (and services) back up and running.

tagged: pear server issues restored postmortem details

Link: http://blog.pear.php.net/2015/12/11/server-fully-restored/

SitePoint PHP Blog:
Build a Superfast PHP Server in Minutes with Icicle
Sep 17, 2015 @ 11:21:44

The SitePoint PHP blog has posted a new tutorial by Christopher Pitt showing you how to build a PHP server "super fast" with the help of the Icicle/http library and some event-driven programming techniques.

Event-based programming is a strange topic for PHP developers. In a language as procedural; events are little more than function calls. Nothing happens between events, and all meaningful code is still blocking.

Languages like JavaScript show us what PHP could be like if event loops were at the center. Some folks have taken these insights and coded them into event loops and HTTP servers. Today we’re going to create an HTTP server, in PHP. We’ll connect it to Apache to serve static files quickly. Everything else will pass through our PHP HTTP server, based on Icicle.

They start off showing you how to configure your Apache server to rewrite the requests (only for non-existent files) to the PHP handler. From there, he helps you get the Icicle/http library installed and create a simple HTTP server with it's included functionality. He shows how to set up routing using the LeagueRoute package and return correct HTTP response codes based on the result of the request. Finally he shows the use of the LeaguePlates library to render more complex views than just plain-text results.

tagged: tutorial http server icicle league plates route

Link: http://www.sitepoint.com/build-a-superfast-php-server-in-minutes-with-icicle/

SitePoint PHP Blog:
Appserver – a Production-ready PHP-based Server
Aug 06, 2015 @ 08:57:44

The SitePoint PHP blog has posted a new review of Appserver, a "production-ready PHP application server" that includes a web server written in PHP. Appserver is a downloadable project that can be run on any server that already has PHP installed.

You’re probably asking, “Why is appserver paradigm changing?” The answer is, because it tackles the last frontier of PHP application development: high performance for large applications from a server resource optimization and collaboration perspective. This is the realm of PHP development which a good number of professional PHP developers have been calling for, like Manuel Lemos in his “PHP7 Features and Release Date” blog (see the section about a “Standalone Multi-threading Web Server”) and Fabien Potencier, father of Symfony, in his presentation “My Take on PHP”, where he notes he is also working on such an application server solution himself. Well, look no longer Fabien, we already have a really good solution with appsever.io.

In this first part of a new series author Scott Molinari introduces some of the basic concepts behind an appserver in general and helps you get the software installed. He talks about threading and compares the typical PHP server stack against the appserver approach. The main difference is that, with the appserver, there's more control over what's destroyed for each request, allowing more control over the execution and reuse of components. He points out that it does require a bit of different kind of thinking to write code that works with an appserver. He finishes off the post with a few quick steps to getting the latest version of the Appserver build into a local VM via the apt-get package manager and starting it up.

tagged: appserver appserverio application server introduction part1 series concept installation

Link: http://www.sitepoint.com/appserver-a-production-ready-php-based-server

Andrew Embler:
Creating a Z-Ray Plugin for Zend Server 8.5
Jul 22, 2015 @ 11:37:45

In this post to his site Andrew Embler shows you how to create a custom Z-Ray plugin for the Zend Server (v8.5) to show some statistics about requests made to the application.

Zend just released version 8.5 of their Zend Server application server. A major part of this release is the plugin gallery, which provides an App store for Zend Server extensions. These extensions can add application-specific debugging features to the Z-Ray Debugger. We've built one such extension specifically for Concrete5. It didn't take long – just a day or two. That said, there were some bumps in the process, as you're working on a platform for which the documentation hasn't quite caught up yet. With that in mind, I'm going to share my process for building the Concrete5 Z-Ray plugin, in the hopes that it might help someone who is building their own Z-Ray plugin for Zend Server.

The post is pretty comprehensive, sharing all the code you'll need to implement the extension along the way. He's broken it up into sections to help make it a bit more manageable:

  • Create Your Directory
  • Place the deployment.json file in the directory
  • Add Additional Items specified by deployment.json
  • Add the Z-Ray specific Directory
  • Create the Z-Ray PHP Class
  • [Adding] The Logo
  • Basic Panel Details: The Pages Panel
  • Advanced Panel Details: The Blocks Panel

Screenshots also accompany some of the steps showing you what the page output should look like once the files and functionality are in place.

tagged: zray plugin zendserver tutorial application server platform

Link: http://andrewembler.com/2015/07/creating-z-ray-plugin-zend-server-85/

New Media Campaigns:
Docker for PHP Developers
Jun 02, 2015 @ 10:29:38

The New Media Campaigns site has posted a new tutorial today introducing PHP developers to Docker, the handy tool to create containers for your applications a bit simpler and more efficient than just something like Vagrant.

I've used Vagrant to manage local development servers for several years. Vagrant is, according to its official website, a tool to "create and configure light-weight, reproducible, and portable development environments." [...] However, Vagrant has one large downside—it implies hardware virtualization. This means each project runs atop a full virtual machine, and each virtual machine has a complete operating system that demands a large overhead in system resources.

[...] There is another solution, though. Have you heard of Docker? I first heard this word a year ago. It's all about containers, I was told. Awesome. What are containers?, I thought. I dug deeper, and I read all about containerization, process isolation, and union filesystems.

He starts with a brief introduction to what Docker is and two of the key concepts: containers and images. He then talks about how Docker is different from Vagrant, including the extensibility and lighter resource demands. Following all this he starts in on building an actual application in a container. He walks you through each step, including commands, to build the container and image that will result in the final instance running Ubuntu, MySQL, Nginx and PHP-FPM. He sets up a simple "Hello World" page and shows how to configure the Nginx server to serve it up as well as the MySQL server to cooperate with PHP and run locally.

tagged: docker introduction container image configure server setup tutorial

Link: http://www.newmediacampaigns.com/blog/docker-for-php-developers

ServerGrove Blog:
Satis: building your own Composer repository
Apr 30, 2015 @ 11:26:53

Composer has definitely made a huge impact on how PHP packages and libraries are integrated into other applications. Sometimes, though, it makes more sense for you to keep your code internal to the organization rather than have it public where Composer can install it. In this case, using some thing like Satis (a self-hosted Packagist-ish server) makes more sense.

We all love Composer. It changed dramatically the way we build PHP applications, based on small and reusable components, but this creates new challenges, especially when we have a single point of failure (SPO). With Satis, the deployment process can be made robust by adding redundancy in all potential SPOFs (Packagist and GitHub). Let’s see how it works.

They start with a brief look at how Composer works for those not familiar, making the connection with Packagist and ultimately the public repository. In the context of the "single point of failure" they talk about Packagist being down and it preventing the install (or deployment!) of your application. Satis is prefect to help prevent this. The article then shows how to install Satis (via Composer, naturally) and how to set up the configuration file to define the repositories. The server is then built and can be run using the built-in PHP server on the port of your choice. They include a screenshot of the end result and a quick example of how to use it via your project's Composer configuration.

tagged: satis tutorial packagist composer local server install configure repository

Link: http://blog.servergrove.com/2015/04/29/satis-building-composer-repository/

Gonzalo Ayuso:
Building TCP server daemond with PHP and Rachet
Apr 13, 2015 @ 10:18:41

Gonzalo Ayuso has a new post to his site today showing how to create a TCP server daemon with PHP with help from the Ratchet toolset. Ratchet is a library that makes it easier to work with WebSockets directly from PHP.

In my daily work I normally play a lot with TCP servers, clients and things like that. I like to use Linux’s xinet.d daemon to handle the TCP ports. I’ve also written something about it. This approach works fine. The problem appears when we call intensively our xinet.d server. It creates one PHP instance per request. It isn’t a problem with one request in, for example, 3 seconds, but if we need to handle 10 requests per second our server load will grow. The solution: a dedicated server.

In a setup similar to how Silex registers callbacks, he's created a PHP-based server that listens on whatever ports are defined for incoming connections and processes the data accordingly. He includes several code samples that show it in use, both in simple request handling and more complex configurations based off of a YAML file definition. He ends the post with a method he uses to "emulate" threading in his processing with the help of a Silex app and HTTP requests to hand off the processed and remove the blocking problem PHP introduces.

tagged: tcp server daemon ratchet websocket silex tutorial

Link: http://gonzalo123.com/2015/04/13/building-tcp-server-daemon-with-php-and-rachet/