AJAX / Javascript based data visualization with real-time updates

1. Implement web page with PHP that frequently (5 second interval) fetches dataset from MySQL database - there should be separate configuration file that can be used to define connection parameters for MySQL connection - there will be only one table in target database with following fields: word(string), count (integer), sentiment(boolean) - exact field names and table name should be possible to configure in config file - amount of rows in table will be less than 500 - in actual use, the count column in DB will be constantly updating with new values (not included in this project deliverables) - database and its creation is not included in project deliverables, although you will probably need one during testing phase with changing content 2. Visualize data (words & counts) using this kind of approach [login to view URL] - The bigger the relative count for each word is, the bigger bubble for the word there should be - If sentiment value related to the word is 0 then bubble color should be blue and with value = 1 it should be red - The colors used for bubbles should be possible to configure - This visualization should be frequently (5 second interval) updated with data fetched from MySQL DB - Try to make updates as smooth as possible without lots of flickering Final deliverables - PHP page with external files that implement defined solution (assuming that there is MySQL DB available & correctly configured) IPR rights of delivered solution will be granted to us