Membuat Register Form PHP (Check if Username Already Exist or not)

Cara membuat Register form, di bawah ini hanya proses Register nya saja, <? include "koneksi.php"; $username = mysql_real_escape_string($_POST['username']); $password = md5(mysql_real_escape_string($_POST['password'])); $checklogin=mysql_query("select * from users where username = '".$username."'"); if(mysql_num_rows($checklogin) != 0){ echo "this username has been taken please choose another one"; } else { $mysqlinput = mysql_query("insert into users (username , password )value ('".$username."','".$password."')"); if($mysqlinput){ echo "Register Progress succeed"; } } ?>,


worked and tested by me :)