PHP Line Graph using end-user inputted data

I have an app that has already been set up where the end-user enters all their details and then submits the form which then displays the information on the next page (simple stuff).

I've set up a table where the using enters numbers into and then when they click submit it goes to the next page (along with all other details) and displays a line graph with markers.

Their is two seperate fields... one set of numbers for "Left" and one set of numbers for "Right". Their will need to be 2 seperate line graphs and one graph with 2 lines. The Markers will need to be an image X for left and O for right (needs to be confirmed).

Looking to get this done ASAP.