Insert Checkbox value to Database - php

Question

so im trying to store values from a checkbox into my database
It works if I use a normal Textbox but as soon as I attempt it with a checkbox it doesnt work any idea? I want to have two for example checkbox1 and checkbox2 there values should be stored in my database colums for example Colum1 colum2.
Thanks in advance for anyhelp
<form name="checkbox.php" id="names" action="<?php echo JURI::current(); ?>" method="post">
<p><input type="checkbox" name="game" value="ExampleGame" />b</p>
<p><input type="checkbox" name="Age" value="ExampleAge" />b</p>
<p><input id="submit" name="submit" type="submit" value="Submit Names" /></p>
</form>
<?
if( (isset($_POST['game'])) || (isset($_POST['Age'])) ) {
//first name or last name set, continue-->
$game = $_POST['game'];
$Age= $_POST['Age'];
$db =& JFactory::getDBO();
$query = "INSERT INTO `gameTable` (`game`, `Age`)
VALUES ($game, $age);";
$db->setQuery( $query );
$db->query();
} else {
echo '<h4>One Field Is Required!</h4>';
}
?>

Answer 1

Try this
$query = "INSERT INTO `gameTable` (`game`, `Age`) VALUES ('".$game."','".$age."', )";

Answer 2

Check the values that come back from your form:
$game = $_POST['game'];
$Age= $_POST['Age'];
You should find that if the checkbox isn't selected, no value (in fact, no field) is returned.
That may be your problem.

Answer 3

Use some alerts for troubleshooting:
echo $_POST['game'];
echo $_POST['Age'];
echo $_POST['query'];
Even when you don't know what you are doing/doing wrong, try to troubleshoot the problem.
Alerts help alot in PHP to check if you get the values on your variables that you expect.
If you get your query string, test this directly on your database.

Answer 4

I resolve with this easy way:
<input type="checkbox" name="field_name" value="N" style="display: none;" checked />
On mysql database i have create a trigger
if new.field_name= '' then set new.field_name= 'S';