<?php
$con = mysqli_connect('localhost', 'root', '', 'yüksekskor');
//bağlantı olduysa
if(mysqli_connect_errno())
{
echo "1: connection failed"; //error code #1 = connection failed
exit();
}
$kullanici_adi = $_POST["adı"];
//eğer isim mevcutsa
$namecheckquery = "SELECT kullanici_adi FROM skor_bilgisi WHERE kullanici_adi=' ". $kullanici_adi. "';";
$namecheck = mysqli_query($con, $namecheckquery) or die("2: name check query failed"); //errod cone #2 - name check query failed
if(mysqli_num_rows($namecheck) > 0)
{
echo "3: name already exists"; //error code #3 - name exists cannot register
exit();
}
//kullanıcıyı ekleme
$insertuserquery = "INSERT INTO skor_bilgisi (kullanici_adi) VALUES ('" . $kullanici_adi . "');";
mysqli_query($con, $insertuserquery) or die("4: Inser player query failed"); //error code #4 - insert query failed
echo("0");
?>