<form action="" method="post">

<select name="game">
  <option value="Counter Strike 1.6">Counter Strike 1.6</option>
  <option value="Counter Strike GO">Counter Strike GO</option>
  <option value="League of Legends">League of Legends</option>
  <option value="Diablo 3">Diablo 3</option>
</select>

Number of folks I'm searching for:
<select name="players">
  <option value="2">1</option>
  <option value="3">2</option>
  <option value="3">3</option>
  <option value="5">4</option>
  <option value="6">5</option>
  <option value="7">6</option>
  <option value="8">7</option>
  <option value="9">8</option>
  <option value="10">9</option>
  <option value="11">10</option>
  <option value="12">11</option>

</select>

<input type="submit" value="create">
</form>

<?php
session_start();

$_SESSION['creating_room'] = $_POST['game'].$_POST['players'];;

$game = $_POST['game'];
$players = $_POST['players'];
$file = "chatrooms/$game.txt";

    $servername = getenv('IP');
    $username = getenv('C9_USER');
    $password = "";
    $database = "c9";
    $dbport = 3306;


    $db = new mysqli($servername, $username, $password, $database, $dbport);


    if ($db->connect_error) {
        die("Connection failed: " . $db->connect_error);
    }

if($_SESSION['creating_room'] != $_SESSION['created_room'] && isset($_POST['game']) && isset($_POST['players'])){
$sql="INSERT into chat_rooms(name,numofuser,file) Values ('$game','$players','$file')";

if ($db->query($sql) === TRUE) {
    echo "The room was created successfully";

$_SESSION['created_room'] = $_SESSION['creating_room'];

} else {
    echo "Error: " . $sql . "<br>" . $db->error;
}

$fh = fopen("room/$file", 'a+');

}
$db->close();