Tag: zend framework

PHP Invades Amsterdam; or, the Dutch PHP Conference

For the third year running, I'm pleased to be speaking at the Dutch PHP Conference, held again in Amsterdam this coming 10–12 of June.

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A Primer for PHP 5.3's New Language Features

For the past month, I've been immersed in PHP 5.3 as I and my team have started work on Zend Framework 2.0. PHP 5.3 offers a slew of new language features, many of which were developed to assist framework and library developers. Most of the time, these features are straight-forward, and you can simply use them; in other cases, however, we've run into behaviors that were unexpected. This post will detail several of these, so you either don't run into the same issues — or can capitalize on some of our discoveries.

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A Simple Resource Injector for ZF Action Controllers

Brandon Savage approached me with an interesting issue regarding ZF bootstrap resources, and accessing them in your action controllers. Basically, he'd like to see any resource initialized by the bootstrap immediately available as simply a public member of his action controller.

So, for instance, if you were using the "DB" resource in your application, your controller could access it via $this->db.

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Module Bootstraps in Zend Framework: Do's and Don'ts

I see a number of questions regularly about module bootstraps in Zend Framework, and decided it was time to write a post about them finally.

In Zend Framework 1.8.0, we added Zend_Application, which is intended to (a) formalize the bootstrapping process, and (b) make it re-usable. One aspect of it was to allow bootstrapping of individual application modules — which are discrete collections of controllers, views, and models.

The most common question I get regarding module bootstraps is:

Why are all module bootstraps run on every request, and not just the one for the requested module?

To answer that question, first I need to provide some background.

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Responding to Different Content Types in RESTful ZF Apps

In previous articles, I've explored building service endpoints and RESTful services with Zend Framework. With RPC-style services, you get to cheat: the protocol dictates the content type (XML-RPC uses XML, JSON-RPC uses JSON, SOAP uses XML, etc.). With REST, however, you have to make choices: what serialization format will you support?

Why not support multiple formats?

There's no reason you can't re-use your RESTful web service to support multiple formats. Zend Framework and PHP have plenty of tools to assist you in responding to different format requests, so don't limit yourself. With a small amount of work, you can make your controllers format agnostic, and ensure that you respond appropriately to different requests.

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Symfony Live 2010

This week, I've been attending Symfony Live in Paris, speaking on integrating Zend Framework with Symfony. The experience has been quite rewarding, and certainly eye-opening for many.

To be honest, I was a little worried about the conference — many see Symfony and ZF as being in competition, and that there would be no cross-pollination. I'm hoping that between Fabien, Stefan, and myself, we helped dispel that myth this week.

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Creating Re-Usable Zend_Application Resource Plugins

In my last article, I wrote about how to get started with Zend_Application, including some information about how to write resource methods, as well as listing available resource plugins. What happens when you need a re-usable resource for which there is no existing plugin shipped? Why, write your own, of course!

All plugins in Zend Framework follow a common pattern. Basically, you group plugins under a common directory, with a common class prefix, and then notify the pluggable class of their location.

For this post, let's consider that you may want a resource plugin to do the following:

  • Set the view doctype
  • Set the default page title and title separator

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Quick Start to Zend_Application_Bootstrap

We added Zend_Application to Zend Framework starting in version 1.8.0. The intent behind the component was to formalize the application bootstrapping process, and provide a simplified, configuration-driven mechanism for it.

Zend_Application works in conjunction with Zend_Application_Bootstrap, which, as you might guess from its name, is what really does the bulk of the work for bootstrapping your application. It allows you to utilize plugin bootstrap resources, or define local bootstrap resources as class methods. The former allow for re-usability, and the latter for application-specific initialization and configuration.

Additionally, Zend_Application_Bootstrap provides for dependency tracking (i.e., if one resource depends on another, you can ensure that that other resource will be executed first), and acts as a repository for initialized resources. This means that once a resource has been bootstrapped, you can retrieve it later from the bootstrap itself.

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Real-time ZF Monitoring via Zend Server

When keeping tabs on your ZF applications, it's often difficult to separate application errors from general PHP errors, and if you aggregate them in the same location as your web server errors, this can become more difficult still.

Additionally, PHP's error reporting doesn't provide a ton of context, even when reporting uncaught exceptions — typically you'll only get a cryptic exception message, and what file and line emitted it.

Zend Server's Monitor extension has some capabilities for providing more context, and does much of this by default: request and environment settings available when the error was logged, the function name and arguments provided, and a full backtrace are available for you to inspect. Additionally, the Monitor extension includes an API that allows you to trigger custom Monitor events, and you can provide additional context when doing so — such as passing objects or arrays that may help provide context when debugging.

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Building RESTful Services with Zend Framework

As a followup to my previous post, I now turn to RESTful web services. I originally encountered the term when attending php|tropics in 2005, where George Schlossnaggle likened it to simple GET and POST requests. Since then, the architectural style — and developer understanding of the architectural style — has improved a bit, and a more solid definition can be made.

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