Rob Allen is a software consultant and developer. He currently runs Nineteen Feet, focusing on web development, training, and consultancy. Rob has been involved in software architecture and development for a number of years now and writes code in PHP, Swift, and other interesting languages. He contributes to open source projects such as Slim Framework and is the author of Zend Framework in Action (Manning Publications). Rob holds a master's degree in electronic engineering from the University of Birmingham in the UK.