Is Yii a reasonable option to use for an existing website? What conversion issues can be expected?
I see the advantage of Yii for a new website.
Background: Our website serves a senior club and is home grown using 'PHP and MySQL for Dynamic Webisites', 'PHP5 Advanced' and 'Modern Javascript Develop and Design' with some third party scripts. It has many admin & email features. A conversion to Yii could make shared admin & website extensions easier but unsure of the effort needed to convert. Thanks for your thoughts.