Hash text with hash()-function

Read EXIF-data from JPEG-image

Decode characters to HTML-entities

Validate Finnish personal ID

Show your screen resolution and color depth

Decode URLs with urldecode()

Convert GPS-coordinates

Direction and Distance from A to B

This little EXIF-fella had some coding-issues so he's being out of the game for a while. :)

(he managed to generate 411000 rows (~70 megs) of error-log in less than 5 minutes and I have no clue how he did that... Quite a code, could say.