MySQL to PHP to Javascript

I've spent the day re-writing a connector to pass data from a MySQL database into a website. The data for the site is stored in a MySQL database and accessed using PHP. But then I needed to pass it into Javascript to be able to display some graphs and a map using Leaflet and Dojo...it is all done now.

To be honest, this is the second re-write of this code in a few weeks and I am still not happy! There must be a better way of doing this...surely? If anyone knows of any modules or pre-written libraries that they can point me in the direction of...I would love to have a clean and simple way of doing this.