php mysql如何插入自动生成的字段表单

I am a new php beginner am working on a lottery project..which i have 5 input text field on each draw and which total draw is 10 draw and 9 is hiding it only display when the player select number of draw to play...

The problem am having here is how will i insert the 5 picking number into database when.. this what i did

$game1 = (int) $_POST['game1_mainball3'] . "-" . (int) $_POST['game1_mainball2'] . "-" . (int) $_POST['game1_mainball3'] . "-" . (int) $_POST['game1_mainball4'] . "-" . (int) $_POST['game1_mainball5'];

which i var default draw as $game1 when in insert data it only insert $_POST['game1_mainball3'] in to the column

this my insert code

   $sql = "INSERT INTO tickets (drawdate, drawtime, ticket_no) VALUES ('$drawdate','$drawtime','$game1')";
   mysql_query($sql);

i realy appricate ur replys..but am think maybe am the one have problem with my form name maybe that what affecting it here is the form am posting

Game 1      OR Game Type   At  
        <div class="fields" id="game_set_2" style="display: none;"><div class="lotto_game">Game 2</div><input onkeypress="return EnterKeyHandler(this, event)" type="text" title="Game 2 - Ball 1" class="text_num" name="game2_mainball1" id="game2_mainball1" maxlength="2">&nbsp;<input onkeypress="return EnterKeyHandler(this, event)" type="text" title="Game 2 - Ball 2" class="text_num" name="game2_mainball2" id="game2_mainball2" maxlength="2">&nbsp;<input onkeypress="return EnterKeyHandler(this, event)" type="text" title="Game 2 - Ball 3" class="text_num" name="game2_mainball3" id="game2_mainball3" maxlength="2">&nbsp;<input onkeypress="return EnterKeyHandler(this, event)" type="text" title="Game 2 - Ball 4" class="text_num" name="game2_mainball4" id="game2_mainball4" maxlength="2">&nbsp;<input onkeypress="return EnterKeyHandler(this, event)" type="text" title="Game 2 - Ball 5" class="text_num" name="game2_mainball5" id="game2_mainball5" maxlength="2">&nbsp;<span class="quickpick" style="display: inline;">
        <strong>OR</strong>
        <input type="button" name="quickpick" class="btn light" value="Quick Pick" onclick="QuickPick(2, 5, 0, 90, 0)">
        </span>
         <strong>Game Type</strong>
        <input type="text" class="text_small" readonly="readonly" name="gametypeform2" value="Perm" maxlength="10">
        &nbsp;
        </span>
        <strong>At</strong>
        <input onkeypress="return EnterKeyHandler(this, event)" type="text" title="price" class="text_small" name="game2_price" id="game2_price" maxlength="5" />
        &nbsp;
        <br>
        </div>

Try:

$gameball[1] = (int) $_POST['game1_mainball1'];
$gameball[2] = (int) $_POST['game1_mainball2'];
$gameball[3] = (int) $_POST['game1_mainball3'];
$gameball[4] = (int) $_POST['game1_mainball4'];
$gameball[5] = (int) $_POST['game1_mainball5'];

foreach($gameball as $value){
    $game1 .= $value.'-';
}

$data = mysql_query("INSERT INTO tickets (drawdate, drawtime, ticket_no) VALUES ('$drawdate','$drawtime','$game1')") or die(mysql_error());