Tag: php

Zend Framework 1.5 is on its way!

As many know, Zend Framework 1.5.0 is almost ready for release... heck, it might even be released by the time you read this. There are a ton of new features worth looking into, but I'll list some of my own favorites here - the ones I've been either working on or using.

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Submitting Bug Reports

Full disclosure: I am employed by Zend to program Zend Framework. That said, the following is all my opinion, and is based on my experiences with Zend Framework, as well as answering questions on a variety of mailing lists and with other OSS projects (PEAR, Solar, and Cgiapp in particular).

One of my biggest pet peeves in the OSS world is vague bug/issue reports and feature requests. I cannot count the number of times I've seen a report similar to the following:

<Feature X> doesn't work; you need to fix it now!

If such a report comes in on an issue tracker, it's invariably marked critical and high priority.

What bothers me about it? Simply this: it gives those responsible for maintaining Feature X absolutely no information to work on: what result they received, what was expected, or how exactly they were using the feature. The reviewer now has to go into one or more cycles with the reporter fishing for that information -- wasting everyone's time and energy.

Only slightly better are these reports:

<Feature X> doesn't work -- I keep getting <Result X> from it, which is incorrect.

At least this tells the reviewers what they reporter is receiving... but it doesn't tell them how they got there, or what they're expecting.

So, the following should be your mantra when reporting issues or making feature requests:

  • What is the minimum code necessary to reproduce the issue or show the desired API?
  • What is the expected result?
  • What is the actual result?

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Zend_Form Webinar Wednesday

Just an FYI for anyone interested: I'll be performing a webinar for this week's Zend Wednesday Webinar series on Zend_Form. You can get details on the webinar and how to register for it at the Zend_Form webinar information page.

I'll be covering the design of Zend_Form, the basic usage and various classes and plugins available, and internationalization of your forms. Please join me Wednesday at noon EST!

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Zend_Form Advanced Features

I've been working on for the past few weeks, and it's nearing release readiness. There are a number of features that Cal didn't cover in his DevZone coverage (in part because some of them weren't yet complete) that I'd like to showcase, including:

  • Internationalization
  • Element grouping for display and logistical purposes
  • Array support

This post will serve primarily as a high-level overview of some of these features; if you're looking for more in-depth coverage, please review the unit tests. :-)

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Backwards Compatibility

Ivo already pointed this out, but I want to point it out again: Boy Baukema writes a very nice entry regarding backwards compatibility on the ibuildings.nl corporate blog.

Backwards compatibility (BC) is a tricky thing to support, even when you strive hard to, as Boy puts it, "think hard about your API" prior to release. Somebody will always come along and point out ways it could have been done better or ways it could be improved. I've had to wrestle with these issues a ton since joining the Zend Framework team, and while it often feels like the wrong thing to do to tell somebody, "too little, too late" when they have genuinely good feedback for you, its often in the best interest of the many users already using a component.

I had the pleasure of meeting Boy last year when visiting the ibuildings.nl offices, and he's got a good head on his shoulders. He does a nice job outlining the issues and a number of approaches to BC; if you develop a project for public consumption, you should definitely head over and read what he has to say.

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Burlington PHP Tonight

The Burlington PHP User Group is having another meeting tonight at 5:30pm at Brown & Jenkins Coffee Roasters. From the announcement:

Bradley Holt will be giving a presentation on developing a web application using Zend Framework. Bradley Holt is founder and web developer for Found Line, a local design and development studio which has used Zend Framework in several recent projects. He also works as a software developer for a local non-profit. Before starting Found Line he worked as computer trainer teaching a variety of subjects including Java/JSP, ASP.NET, and PHP

Visit the meeting page for details on location and RSVPs. If you're in the Burlington, VT, area, we'd love to see you there!

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Apache HOSTNAME on Clusters

In an effort to debug issues on a cluster, I was trying to determine which machine on the cluster was causing the issue. My idea was that I could insert a header token identifying the server.

My first idea was to add the directive 'Header add X-Server-Ip "%{SERVER_ADDR}e" in my httpd.conf. However, due to the nature of our load balancer, Apache was somehow resolving this to the load balancer IP address on all machines of the cluster -- which was really, really not useful.

I finally stumbled on a good solution, however: you can set environment variables in apachectl, and then pass them into the Apache environment using the PassEnv directive from mod_env; once that's done, you can use the environment variable anywhere.

In my apachectl, I added the line "export HOSTNAME=`hostname`". Then, in my httpd.conf, I added first the line "PassEnv HOSTNAME", followed by the directive 'Header add X-Server-Name "%{HOSTNAME}e"'. Voila! I now had the hostname in the header, which gave me the information I needed for debugging.

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2007 Retrospective

2007 was a busy year, both personally and professionally. I won't go into the personal too much, because, well, it's personal, and some of the details are simply inappropriate for blogging material.

Here's the short version:

  • One trip to Belgium and The Netherlands.
  • Two trips to Israel.
  • Two trips to Atlanta, GA (not counting the return trip from Europe, when I was stranded for a day due to storms in the Northeast).
  • Three different user groups attended, with three presentations.
  • One major Zend Framework release
  • One PEAR release.
  • One podcast.
  • One webinar.
  • One book published.
  • One conference attended.

What follows is my month-by-month breakdown:

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Sqlite Version Mismatch

I ran into an issue recently in testing a site where PDO_SQLITE was claiming that it could not read my PDO database files. The only recent change I'd had was that I'd installed a new version of PHP, and hence a new version of PDO_SQLITE. Searching the web (we're not supposed to say googling or googled anymore, remember ;-)), I found that the issue was that the version of sqlite compiled into my PHP install was not compatible with the version I used to create the databases in the first place. Never mind that they're only a micro version or two different.

So, I was left with a conundrum: I needed to create files compatible with my PDO_SQLITE install, but my CLI sqlite tool was incompatible. And if I used PDO_SQLITE to create the db file, I'd lose my data, right?

Wrong. And here's what you can do should you find yourself in the same situation sometime.

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Zend_Layout and Zend_View Enhanced components now in core

I'm pleased to announce that the Zend_View Enhanced and Zend_Layout components are now in the Zend Framework core. With these two components, you can now create some truly complex views for your application with relative ease.

The two components tackle several view related tasks:

  • Layouts, or Two Step Views
  • Partials (view fragment scripts with their own variable scope)
  • Placeholders (store data and/or markup for later retrieval)
  • Actions (dispatch a controller action)

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