Thanks to Yii Framework, our development team used to work on pure PHP website, using framework like cakePHP, codeigniter, but Yii seems to be the most down to earth framework available. The current website http://www.igeocode.com still in early phase of migrating to Yii, should see more professional features after the team dig more details into other Yii extensions.
thanks to Yii development team for this great framework! 