this sucks

<?php

require 'connection.php';
$conn    = Connect();
if(isset($_POST['submit']));
$id    = $conn->real_escape_string($_POST['id']);
$game    = $conn->real_escape_string($_POST['game']);
$server   = $conn->real_escape_string($_POST['server']);
$datetimepicker1 = date('d-m-y H:i:s', strtotime($_POST['datetimepicker1']));
$et   = $conn->real_escape_string($_POST['et']);
$sc   = $conn->real_escape_string($_POST['sc']);
$ss   = $conn->real_escape_string($_POST['ss']);
$ec   = $conn->real_escape_string($_POST['ec']);
$es   = $conn->real_escape_string($_POST['es']);
$dn   = $conn->real_escape_string($_POST['dn']);

$query   = "INSERT into events (id,game,server,datetimepicker1,et,sc,ss,ec,es,dn) VALUES('" . $id . "','" . $game . "','" . $server . "','" . $datetimepicker1 . "','" . $et . "','" . $sc . "','" . $ss . "','" . $ec . "','" . $es . "','" . $dn . "')";
$success = $conn->query($query);

if (!$success) {
    die("Couldn't enter data: ".$conn->error);

}

echo "<td>Thank for submitting your event <br><td/>";

$conn->close();

?>