Stock chart using PHP
I would like to do something similar to this site http://finviz.com/
Basically, when you move a mouseover on stock symbol, it show a stock chart using image generated from backend. For example: http://finviz.com/chart.ashx?s=m&p=d&t=RAX
My question is how to do this backend functionality using PHP. I am thinking of 2 things: 1. Ability to generate candle stick chart. I think I can use something like http://code.google.com/apis/chart/docs/gallery/compound_charts.html#candlestick_charts AND 2. Data source. I think the source can come from manual extraction somewhere for the daily price.
Does anyone know existing library? I don't want to do Flash but just .gif or .jpg image or HTML5. If not, look like I have to build this myself. Any suggestion to make things easier is helpful.
Answer
ChartDirector has various charting options for both technical and fundamental charting of financial data: http://www.advsofteng.com/gallery_finance.html
If you are looking for commercial solution, it can be a very good option.