[Ruben_Alonso]

First read this: https://sampforum.blast.hk/showthread.php?tid=175565

Then you will know what happens here:
I will just use "SyntaxQ" example...

pawn Код:

new year,
    month,
    day,
    str[128],
    INI:file = INI_Open("Player.ini"); // here you define the file you are going to open

getdate(year, month, day);
format(str, sizeof(str), "%d/%d/%d", day, month, year);
INI_WriteString(file, "DateRegistered", str); // here you write the variable DateRegistered of the file

You will have to place this on the function that you use to register your players. If you still do not understand then i recommend you reading some documentation.