Welcome to my website!

I'm Harrie, a PHP developer from the south-west of the Netherlands. Although I've been a professional PHP developer for over a decade, I'm still always eager to learn new things. I share my knowledge here, on my blog - or at conferences where I occassionally get to speak.

Besides my daytime job at NLvoorelkaar, I'm also a co-organizer of the Code By The Sea usergroup, a guitarist in a band called WATT and I enjoy playing tennis.

Latest entries

Moving from commercial to social

Moving from commercial to social

"Why am I doing what I’m doing every day of my life? I’m working really hard, learning great skills and working overtime so we can still make the impossible deadline with the team. But why? ... At a larger scale, am I making a difference to the world at all?"

A story about me moving to a company with social impact as it's primary goal, and how it changed my everyday life.

Toying around with my first generation Lytro at PHPSC15

Toying around with my first generation Lytro at PHPSC15

A while ago I bought a first generation Lytro camera because I thought the concept is awesome, and to try it out I brought it with me on my visit to PHP South Coast 2015! To be honest I was a bit disappointed with the results, but since so many people there were interested in the little device, I decided to share the results anyway.

It's ok to not know

It's ok to not know

We've all been in this position; a group of people are talking about something and you happen to be at the same table as well. You haven't got a clue what everyone is talking about, but you don't want to appear stupid and so you just decide to be quiet and blur out something like "yeah it's great I use it a lot as well" every once in a while. Afterwards, you quickly Google for the thing they were talking about, because apparently you missed something?