A PHP class for serving Retina images to appropriate devices
KKRetinaPlease sniffs the visitor's device for Retina support and delivers appropriate images to those devices.
The only thing that changes with KKRetinaPlease in the developer's process is the way he writes the 'src' attribute for images.
A demo and usage instructions are included with the download package.
The class was also tested and found working with CakePHP as well.