I am a beginner for PHP. I need to create a line graph using PHP using data from MySQL
(I had downloaded jpgraph but I do not know how to use it)
first of all you've know some basic of php, html, javascript and mysql. See the documentation of jpgraph from the official site of jpgraph. How To
jpgraph has an extensive documentation for nearly every php skill level.
Included in the download package are many examples on how to use every kind of charts available for you.
Make sure to
Then get a grip on how it works while analyzing the examples provided.