Question

I have this code and it does not insert the values in the database. What am I doing wrong?

while ($rij = mysql_fetch_assoc($doquery2))
{
    $user_id = $rij['id'];
}

$cat = $_POST['cat'];

foreach($cat as $key => $value) 
{
    //$sql = "";

    if ($value > 0) 
    {
        $sql = sprintf("INSERT INTO cat VALUES('','$user_id','%s');",$value);
        mysql_query($sql);
    }
}

In my form each checkbox is built as follow:

<input type="checkbox" name="cat[]" value="Lifestyle">

What am i doing wrong?

Answer 1

If I remember correctly, an unchecked value won’t get passed through to $_POST at all. So you can just strip the lines checking $value. I think you might be running into issues there with different browsers sending different values for a checked box. So try this:

foreach($cat as $key => $value) 
{
    //$sql = "";

    $sql = sprintf("INSERT INTO cat VALUES('','$user_id','%s');",$value);
    mysql_query($sql);
}