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Piotr Pasich:
Rabbit behind the scenes
October 01, 2014 @ 12:19:53

In a recent post to his site Piotr Pasich shares an article about using a rabbit behind the scenes - making use of the RabbitMQ queuing system for behind the scenes work in your PHP applications.

In PHP business logic is usually put right in action's method or just behind it. Hence, every little piece of delaying and long-running code will be processed with a request. The problem is almost undetectable if a user sends an e-mail but with more complex actions it may take a little bit longer than preferred. [...] In this article I would like to make an attempt to present a solution to the very annoying everyday problem that probably many programmers came across in their organisations - deadlocks in databases caused by a vast number of requests in relatively short time. The main aim of this text is to introduce RabbitMQ, which I value as a very functional and practical message broker, to help you solve the queuing problems and decrease the amount of work you would otherwise have to spend on it.

He talks about why message brokers are even needed and how to pick the right one for your project. Then he gets into the "in practice" part of the article, showing the use of RabbitMQ through PHP to save various data to a database when a user is presented with an advertisement. He shows how to create both the producer and consumer objects, making interaction with the queue simpler. His examples are all using the php-amqplib by Alvaro Videla.

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rabbitmq introduction library tutorial message broker producer consumer

Link: http://piotrpasich.com/rabbit-behind-the-scenes/

NetTuts.com:
Five Hidden Gems of Laravel
August 22, 2014 @ 11:51:20

The NetTuts.com site has posted a list of their five hidden gems in Laravel, a popular PHP framework. They look at a wide range of these "hidden" features that can help make your Laravel experience even better.

Many developers who use Laravel are probably only barely scratching the surface of what the framework has to offer. While the documentation does cover the most common use cases and the obvious features, it doesn't cover everything. Don't get me wrong, the documentation is fine, it's just that there's so much you can do, it's hard to document everything. Because of that, we're going to take a look at some of the hidden gems that lurk within Laravel.

The five items on their list come complete with summaries about the feature, when they were added, if they're documented and a code sample with them in use:

  • Cascading Views
  • Collections (with sorting, filtering and pagination)
  • Regular Expression Filters
  • The Message Bag
  • Fluent
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hidden gems laravel framework views collections regex filter message fluent

Link: http://code.tutsplus.com/articles/five-hidden-gems-of-laravel--cms-21907

Rob Allen:
Globally overriding validation messages for ZF2 forms
August 19, 2014 @ 10:46:27

Rob Allen has posted a quick hint about overriding validation messages in a Zend Framework v2 based application. This override is related to the output of a standard form and works globally instead of just on a single form.

One thing that I always do when creating a Zend Framework 2 form is override the validation messages for a number of validators - EmailAddress in particular. I recently decided that I should probably sort this one out once and be done with it. Turns out that it's quite easy assuming that you use the FormElementManger to instantiate your forms.

The post includes all the code you'll need to do the override: a custom validator example, the changes you'll need to make to the configuration and an example of a form that uses the custom handling. He explains each of the parts too, showing how they fit together in your module.

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zendframework2 override validation message form tutorial

Link: http://akrabat.com/zend-framework-2/globally-overriding-validation-messages-for-zf2-forms/

AWS PHP Development:
Receiving Amazon SNS Messages in PHP
April 01, 2014 @ 10:53:14

The Amazon Web Services PHP Development blog has a new post from Jeremy Lindblom showing you how you can receive inbound SNS messages via a webhook on your application.

Amazon Simple Notification Service (Amazon SNS) is a fast, fully-managed, push messaging service. Amazon SNS can deliver messages to email, mobile devices, Amazon SQS queues, and HTTP/HTTPS endpoints. [...] Though you can certainly subscribe your email address to receive SNS messages from service events like these, your inbox would fill up rather quickly. There is great power, however, in being able to subscribe an HTTP/HTTPS endpoint to receive the messages. This allows you to program webhooks for your applications to easily respond to various events.

Using the AWS SDK for PHP you can set up a listening script that can receive the message and handle subscription confirmations, message signature validation and handling the notifications.

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amazon aws sns message receive webhook sdk

Link: http://blogs.aws.amazon.com/php/post/Tx2G9D94IE6KPAY/Receiving-Amazon-SNS-Messages-in-PHP

SitePoint PHP Blog:
Piping Emails to a Laravel Application
February 17, 2014 @ 09:13:48

On the SitePoint PHP blog there's a new tutorial posted about piping emails to Laravel (well, a Laravel-based application). He shows how to have your application take data in from the current input, parse it and insert the data into a database.

In project management or support management tools, you will see this a lot: you can reply to an email message and it is automatically visible in a web application. Somehow, these tools were able to get those email messages right into their system. In this article, we are going to have a look at how we can pipe emails to our Laravel 4 application.

He walks you through the creation of an Artisan command, "email.parse", and using the PHP MIME Mail Parser library to extract data. He gets the to, from, title and message contents from the email and shows how to work with attachments too. Finally, he shows how to set up the mail server to pipe the incoming email though the PHP script for parsing.

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email parse message laravel tutorial mail server

Link: http://www.sitepoint.com/piping-emails-laravel-application/

Suresh Ariya:
Implement Flash Messages using Session in PHP (Part 1 & 2)
February 06, 2014 @ 11:08:55

In a two part series on his site Suresh Ariya shows you how to implement "flash messages" in your applications (in a framework-agnostic way) with the help of a custom script and the current user's session.

As part of the post series, today we are going to see how we can implement Flash Messages using PHP Session. Before proceeding into that, first i like to explain what is Flash Message and its usage. [...] Flash message is a message that will be shown/displayed only once. if you reload the browser or navigated to other pages and came back, you won't see the same message displayed again.

In part one he introduces the concepts behind flash messaging and gets into the initial steps of the implementation via a "FlashMessageInterface" to define the structure. In part two he gets into the actual implementation and shares a script that uses a custom prefix to define the messages and the expected getter/setter methods as well as "clear" functionality.

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flash message series part1 part2 implementation interface

Link: http://sureshdotariya.blogspot.in/2013/12/implement-flash-messages-using-session.html

Symfony Blog:
Help Symfony reach 3 billion people
January 17, 2014 @ 11:53:02

The Symfony project wants your help to allow this popular PHP framework to reach more people all around the world (3 billion, according to them) by helping out with translations in the Validator and Security component.

Internationalization has been one of the pillars of the Symfony success since the very beginning. Besides providing tools to translate both the strings and the contents of your applications, Symfony itself is translated into a lot of different languages. [...] Some of these translations are incomplete or haven't been updated for a long time. For that reason, we are organizing a community initiative to improve the internationalization of Symfony.

The strings they're talking about are in the Validator and Security components and are currently in 20 different languages. They've broken up the ones they're needing help on into a few categories:

  • Completed translations
  • Incomplete translations
  • Unavailable translations
  • Additional translations

Obviously, they'd love ones from any of the last four in that list and they include a few steps on how to grab the latest version of Symfony and get translating.

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symfony project framework translate message validator security

Link: http://symfony.com/blog/help-symfony-reach-3-billion-people

SitePoint PHP Blog:
Message Queues Comparing Beanstalkd, IronMQ and Amazon SQS
January 08, 2014 @ 10:37:35

The SitePoint PHP blog has a new post looking at using message queues in PHP. More specifically it compares a few of the different solutions out there and their advantages/disadvantages - Beanstalkd, IronMQ and the Amazon SQS.

This article introduces the concept of message queues and discusses the strengths and weaknesses of three specific message queue services: Beanstalkd, IronMQ and Amazon SQS. [...] Queues allow you to store metadata for processing jobs at a later date. They can aid in the development of SOA (service-oriented architecture) by providing the flexibility to defer tasks to separate processes. When applied correctly, queues can dramatically increase the user experience of a web site by reducing load times.

He starts with some of the overall benefits and downfalls of using a queueing system in your application, including some common use cases. From their he breaks it up into sections, in each talking about the option and how it differs from the others:

  • Services
  • Server setup
  • Service Level Agreements (SLAs)
  • Architecture
  • Client libraries
  • Management interface
  • Redundancy
  • Security
  • Speed
  • Fidelity
  • One-time pickup

...and many, many more. If you're looking for a good, complete overview of how these three options compare on a wide range of features and configurations, definitely check out this post. It even includes some PHP close to the end to make the connections to each and send/receive messages.

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message queue compare beanstalkd ironmq amazonsqs advantage disadvantage tutorial

Link: http://www.sitepoint.com/message-queues-comparing-beanstalkd-ironmq-amazon-sqs/

Brandon Savage:
Publishing messages to RabbitMQ with PHP
May 30, 2013 @ 10:09:49

Brandon Savage has posted the second article in his RabbitMQ+PHP series today with a look at publishing messages to the queue. (Part one is here)

Now that we understand the basics behind RabbitMQ, it's time for us to start working with it. The first step in working with RabbitMQ is to begin sending messages to the exchange so that they can be queued. In RabbitMQ parlance, the "producer" is responsible for "publishing" the messages to the exchange.

He includes the code you'll need to use the AMQP PHP extension to connect with the RabbitMQ server and select a channel. He also shows how to set up an "exchange" and "queue" and bind them to each other. Finally, there's the one line of code that uses the routing key value to push a message into the waiting service.

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rabbitmq publishing message tutorial queue exchange connection

Link: http://www.brandonsavage.net/publishing-messages-to-rabbitmq-with-php

PHPMaster.com:
Debugging PHP Code with FirePHP
October 30, 2012 @ 08:36:21

On PHPMaster.com today there's a new tutorial showing you a different method for debugging your code than the usual print_r or var_dump - using FirePHP, a tool that uses messaging to relay information back to your browser.

As the technical manager of a suite of software projects, one of my duties is doing code reviews. One of the things I see far more often than I'd like when doing reviews is debugging PHP code committed and pushed up the chain. [...] The safest method of debugging requires configuring your IDE to use a tool like Xdebug or Zend Debugger to trace currently executing code. This isn't always practical. In the absence of using a fully configured debug environment, I turn to FirePHP.

He shows how to set up and configure FirePHP to work with your debugging and some suggestions on browser extensions you can install to view the messages. Sample code is included showing you how to use the tool to send messages back to the browser including grouping messages, building tables and something that shows a conditional caching report message.

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debug tutorial firephp client message



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