Log file from login form

Hello CF

I'm just doing some fun php, and trying to get better. Well i only need one thing, and thats a code. I already made a login form in html and all i need, but i need the php function that stored the typed in data to a log file. Like if i write username : Kee22 and Password : donkey then i saves that to the log file.

Regards,

Nap

Then you need to add a registration form. Is that what you mean and want? Otherwise you can just enter them as variables on your login page.

Then you need to add a registration form. Is that what you mean and want? Otherwise you can just enter them as variables on your login page.

I just need the php function/code to store it!