Originally Posted by dgf
What would be the right method to do this without using db?
I dont have much skills in php or java, and none in db, so Im asking for your help please!
so when validating the form, it sholud look for that number (i dont know were and how hehe)
Without a database, in short you can't do it. You need to be able to record things such as submission times etc to a database so that you can check them, run time difference calculations etc.
Sorry to be blunt about this but if you're not able to use a database, not prepared to try or learn then you shouldn't be taking on this job if you're simply not skilled enough to do so.