Thinking of creating a text based RPG game for fun.
Thinking of using JQUERY/PHP/mySQL
I will either use XML or JSON to send data to the server using AJAX requests.
Unfortunately, using Firebug, a player can easily find out the variables I am using to store player data (experience points, combat, levels, etc).
Therefore, it would be fairly easy for a player to hack their account's variables and potentially "cheat"