connect_error) { die("Connection failed: " . $conn->connect_error); } $sql = "SELECT ID FROM Users WHERE Username = '$friend'"; $query = mysqli_query($conn, $sql); if (mysqli_num_rows($query) > 0) { $sql = "SELECT Type, FromPlayer, ToPlayer FROM request WHERE FromPlayer = '$player' AND ToPlayer = '$friend'"; $query = mysqli_query($conn, $sql); if (mysqli_num_rows($query) > 0) { die("Player already invited"); } $sql = "INSERT INTO request (Type, FromPlayer, ToPlayer, Info) VALUES ('CustomGame', '$player', '$friend', '$ip')"; $query = mysqli_query($conn, $sql); } else { echo("unknow player//"); echo($friend); } $conn->close(); ?>