Remdex site / blog

Hi just small function witch calculates image Euclidean distance:

1. http://forum.coppermine-gallery.net/index.php/topic,62619.0.html
2. http://en.wikipedia.org/wiki/Euclidean_distance

So how to calculate in php all of this for image?

In previous article i talked about versions based caching. This time we can even go more and cache with http headers based on cache version. How to do it?

There are some many great videos about that. Like:

1. http://www.bestechvideos.com/2009/03/21/railslab-scaling-rails-episode-8-memcached
2. http://www.infoq.com/presentations/lutke-rockstar-memcaching

But this time i will share my experience about using methods presented in these videos. Averyone before reading futher should watch these videos first. They are great.

This time small class for APC singleton pattern.

Small example of singleton pattern applied to Memcache php class. Class was not writeln by be. But i think it will be usefull for somebody.

One day looking for a sorting algorithm spent some time and did not find anything good. Actually found, but it needed some adoption. So decided paste it here, maybe someone it will save some time:

I give you free main functions.

• First moves item up.
• Second moves item down.
• Third one moves item down or up by number of positions depending on given parameter.