Hi Dre, and welcome to wxforum.
Before you embark on this, make sure that your web server is running PHP. You need it to run the script.
Since I was already using Anole's Weather Graphic script, and his data file has the required weather data in it already, I use that data in the Fire Danger Script.
You appear to be using WeatherLink software.
Anole's weather graphic download page is at
http://scripts.anolecomputer.com/download.shtml . It's a PHP script package that creates those spiffy banners like you see at the bottom of a lot of posts here and on other forums.
At the link, you will see a file called
wxgraphic_6.1.zip.
Inside that zip file, is a file called WeatherLink_graphictags.htx.
It's a simple text file that looks like this:
<!--stationTime-->,<!--stationDate-->,<!--outsideTemp-->,<!--outsideHeatIndex-->,<!--windChill-->,<!--outsideHumidity-->,<!--outsideDewPt-->,<!--barometer-->,<!--BarTrend-->,<!--windSpeed-->,<!--windDirection-->,<!--dailyRain-->
Those are called html tags. When properly configured, WeatherLink will read that file, recognize the tags, replace each tag with the correct current value, and the upload the file to your website. Then the fire danger script can read those values whenever the script is called, and calculate the current Chandler Burning Index/Fire Danger.
You need to save that file on your computer, and then set WeatherLink to read it and upload it. Once uploaded, you need to edit the fire danger PHP script to point to that data file to get the values.