According to Wikipedia, A fractal is generally "a rough or fragmented geometric shape that 
can be split into parts, each of which is (at least approximately) a reduced-size copy of 
the whole,"[1] a property called self-similarity.   

This PHP script draws a Koch Curve which is a type of Fractal. 
It simply takes an integer as the Koch Curve level and draws it as a jpeg image.
This image can be downloaded like any normal image.

You just need to have PHP GD library installed. You can try this application on my website
at [http://www.dreamstube.com/post/Kich-Curve-This-time-in-PHP.aspx].

Thanks,
Reza Salehi