129128 Save user input to database

I have a simple translation program at the moment. In order to make the translator more efficient, I want to know what each user types in so that I can analyse what words people use etc. Moving on, to do this, when a user clicks 'translate', I want a copy of whatever they type (unless the field is blank) to be sent to a mysql database. I don't really want anyone having direct access to my servers, all i need is code which i can copy/paste into the code for the 'translate' button. Also obviously it will have to connect to the database, so make it clear where i change the user/pass and other details. I think this job is very simple for most php coders, so it should be quick and cheap with an easy 10 rating. Thanks.