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Code experiments

Bytes and megabytes conversion calculator
Convert between memory units
Image layout - size calculator
A calculator for image size
images, layout, sizing
PHP International Language and Locale codes demonstration
PHP internationalisation example
PHP / jQuery / CSS3 timezone clocks
Clock animation for multiple time zones
CSS3, jQuery, rotate, transform
Hashing functions
PHP hash functions
hashing, passwords, PHP
Date format demonstrator
Demonstrates the PHP date formats
date, PHP
Image resizing calculator
A quick calculator for image resizing.
images

QR code generation using the Google API

QR code generator

There are some really useful things on Google Code. One of them is Chart Tools, which includes a QR code generator.

Here is a form that uses the API to let you generate QR codes easily.

QR code for http%3A%2F%2Fred-route.org

https://chart.googleapis.com/chart?chs=150x150&cht=qr&chl=http%3A%2F%2Fred-route.org

<img src='https://chart.googleapis.com/chart?chs=150x150&cht=qr&chl=http%3A%2F%2Fred-route.org'/>