beer planet

Introduction

I don't know about you, but I can't imagine doing my PHP development without an IDE with a debugger anymore.

It autocompletes for me, it lets me step through each line of code, jumping around the project, execute and change the code flow on the fly, and does many other things that make me feel cozy, comfortable, and efficient at PHP development (as opposed to, say, CPP which makes me feel cold and lonely).

There are many PHP IDEs out there and I've tried most of them (including the free PHPEclipse and PDT for…

First of all, I'd like to thank everyone who read and gave their 2 cents about the [Wordpress Plugin Development] How To Include CSS and JavaScript Conditionally And Only When Needed By The Posts post. The article was well received and will hopefully spark some optimizations around loading styles and scripts.

Here are some discussions and mentions around the web:

• an article on Weblog Tools Collection
• a forum post on WP Tavern
• twitter retweets

Sure, there are drawbacks to this method and it does require some more processing on the backend and it's not…

It's always important to know for developers what browsers they are developing for, who dominates the market, and what the current trends are.

I have gotten my hands on the Plaxo.com visitors' browser stats for December of 2009.

This information is valuable because Plaxo has a relatively general demographics, as it's not a site only geeks or only moms visit, and the statistics tends to not be skewed. Therefore, as you can see, Firefox doesn't occupy the same share as you might see on a techy site (on this site, more than 50% of users visit in Firefox).

Also,…

Updated: August 8th, 2010

The Problem

I've had MySQL on my Windows 7 laptop for a bit (as part of wampserver), mostly for local offline WordPress development.

However, even though MySQL is relatively stable, I've been observing a vast quantity of intermittent MySQL errors, as reported by WordPress in the PHP error log (C:\wamp\logs\php_error.log). Here are some examples:

[05-Jan-2010 09:47:51] WordPress database error Error on delete of
'C:\Windows\TEMP\#sql17e0_1a2_6.MYD' (Errcode: 13) for query SELECT t.*, tt.*
FROM wp_terms AS t INNER JOIN wp_term_taxonomy AS tt ON tt.term_id = t.term_id
INNER JOIN wp_term_relationships AS tr ON tr.term_taxonomy_id =
tt.term_taxonomy_id WHERE tt.taxonomy

…

As a backend developer, I don't get to work with JavaScript much anymore. However, from time to time, a project would come along that uses JavaScript (specifically, AJAX) to load some backend data on the fly. Of course, nothing works 100% right away*, so I would often have to tweak this JavaScript and massage it until it does what I need.

Here's where Firebug comes in with its JavaScript debugger. I'm used to using a debugger in every language I deal with, so using Firebug is a no brainer. Since it supports breakpoints, stopping execution and inspecting local variables…

When I visited Mozilla's offices about 6 months ago, I saw a mobile testing station which included about 20-30 different phones lounging around, with their chargers plugged in. I knew something serious was coming soon. There were rumors about Firefox for Mobile for a while but nothing to really show for it. That was then…

Today, however, we know a lot more. Firefox for Mobile, codenamed Fennec, is coming next month (see More Info below) and looks very promising.

Here is a recent video of the Firefox's mobile and design teams discussing and showing the features of Mobile Firefox:…

In this article I will describe the problem I've had with Eclipse's handling of XML file formatting as well as the best way to fix it.

I use Eclipse to do my Android development for a few reasons:

• it's the only IDE fully supported by the Android dev team
• it has a visual Layout/Resources builder that transforms XML files into corresponding visual representations
• it's free and open source
• I've been using Eclipse for many years and am very familiar with it

…

Updated: January 29th, 2010

Today I found out something entirely new about framebusting and specifically clickjacking protection techniques.

I was working with a site that was using frames. Suddenly, one of the frames (which was hosted on a domain that differed from the one it was embedded in) displayed the following message (in Firefox 3.5.4):

This content cannot be displayed in a frame
 
To protect your security, the publisher of this content does
not allow it to be displayed in a frame.
 
Click here to open this content in a new window

Notice how this is…

What Is This All About?

If you, like me, love StackOverflow, SuperUser, ServerFault – the community programming/software/sysadmin Q&A sites built by Joel Spolsky and Jeff Atwood and you are an active member of these sites, you owe it to yourself to install this underappreciated and unadvertised greasemonkey script: StackOverflow – User Info Aggregate. I really think it should get more attention. All credit goes to Jon Erickson.

(What? You've never heard of the sites mentioned above and you call yourself a programmer? Shame on you – go…

I just got back from the StackOverflow's DevDays conference in the rainy (at least today) San Francisco.

I was really glad to see Joel Spolsky, Jeff Atwood, and the whole StackOverflow team in person, as well as listen to great talks in the following topics:

9:00 – 9:50    Joel Spolsky Opening Keynote
9:50 – 10:45    Mark Harrison Python
11:00 – 11:55    Rory Blyth iPhone
11:55 – 12:25    Joel Spolsky Fogbugz
13:30 – 14:25    Scott Hanselman ASP.NET-MVC
14:25 – 14:45    Jeff Atwood Stack Overflow
14:45 – 15:40   …

Updated: October 16th, 2009

Today is my first day looking at Android development. My first encounter with the Android plugin for Eclipse has not been very smooth, to say the least. I am not sure if it's Android's or Eclipse's fault but I just wasted 2 hours on errors during the plugin installation and would like to pass on the time savings to you.

The plugin install page provides initial instructions and the location of the plugin to give Eclipse (https://dl-ssl.google.com/android/eclipse/). This is very standard stuff and I've installed many plugins exactly the same way. However, here's when…

Introduction

Screen is awesome. Once you become comfortable navigating around it, you start using it ALL the time. No more dropped sessions, no having 10 Putty windows open at the same time, no more nohup.

However, with default screen settings I've always felt a bit lost and out of place, mostly because there was no "taskbar" with a bird's eye view of all windows. Pressing ctrl-a, " really does get annoying fast (that's the command that brings up the window selector – screenshot below).

So instead I modded my screen to have a "taskbar" which sits at the bottom…

Updated: September 28th, 2009

The Problem

I am throwing up a quick post about a relatively cryptic error that Solr started throwing the other day here at Plaxo. After happily running for a few days, I suddenly started getting pages about failed Solr indexing.

Upon closer examination, I saw the following repeatedly in the log file:

catalina.2009-09-18.log:SEVERE: java.io.IOException: directory 'DATADIR/index'
exists and is a directory, but cannot be listed: list() returned null

I tried to see if sending an OPTIMIZE command would help but the server returned the same response.

Digging Deeper

The reason was these errors was quite simple –…

Updated: August 8th, 2010

In the past few weeks I've been implementing advanced search at Plaxo, working quite closely with Solr enterprise search server. Today, I saw this relatively detailed comparison between Solr and its main competitor Sphinx (full credit goes to StackOverflow user mausch who had been using Solr for the past 2 years). For those still confused, Solr and Sphinx are similar to MySQL FULLTEXT search, or for those even more confused, think Google (yeah, this is a bit of a stretch, I know).

Similarities

• Both Solr and Sphinx satisfy all of your

…

Updated: August 8th, 2010

Introduction

StackOverflow is an amazing site for coding questions. It was created by Joel Spolsky of joelonsoftware.com, Jeff Atwood of codinghorror.com, and some other incredibly smart guys who truly care about user experience. I have been a total fan of SO since it went mainstream and it's now a borderline addiction (you can see my StackOverflow badge on the right sidebar).

The Story

Update 6/21/09: This server is currently under very heavy load (10-200), even with caching plugins enabled. Please bear with me as I try to…