Mehrere ausgewählte Kontrollkästchenwerte in der Datenbank

<?php
// Make a MySQL Connection
mysql_connect("HOST_NAME", "USERNAME", "PASSWORD") or die(mysql_error());
mysql_select_db("DB_NAME") or die(mysql_error());
$checkBox = implode(',', $_POST['Colors']);
if(isset($_POST['submit']))
{       
    $query="INSERT INTO clr_tbl (colors) VALUES ('" . $checkBox . "')";     

    mysql_query($query) or die (mysql_error() );

    echo "Complete";

}

?>

<html>
<body>
<form method="post" action="">
  <input type="checkbox" name="Colors[]" value="Red">Red<br>
  <input type="checkbox" name="Colors[]" value="Blue">Blue<br>
  <input type="checkbox" name="Colors[]" value="Pink">Pink<br>
  <input type="submit" name="submit" value="submit">
</form>
</body>
</html>
Rht