Saving checkboxes to seperate db row

Hi there! Array-based checkbox fields can be a bit of a struggle sometimes because of most browsers' default behavior. If a box isn't checked, the browser won't even send that index in the next request.

Anyway, there are two common strategies you'll see:

• Giving the checkbox fields each a unique key like <input type="checkbox" name="dogs[0]" /> (in this case 0 would be something unique to each one like a dog ID or something
• Giving checkbox fields a value like <input type="checkbox" name="dogs[]" value="0" /> (again,0` would be your dog ID or whatever here)

Hi thank you for the reply.

Ah thats why its not working. I have added

<input type="checkbox" name="activity1[]" value="{{$dog->id}}" /> in the view

and then the controller serialises it but cant get it to work at all.

I think i'm going to have to try a different method.

Any suggestions on how this can be done?

If i got

Activity 1

• dog 1
• dog 2

Activity 2

• dog 1
• dog 2

etc.

You can use a multidimensional array, something like this (only a example in plain php)

$activities = array('activity 1', 'activity 2', 'activity 3');
$dogs = array('dog 1', 'dog 2');


// Check for post
if (isset($_POST['activity'])) {
    print '<pre>';
    var_dump($_POST['activity']);
}


// Create the form.
print '<form method="post">';

// Loop over the activities.
foreach ($activities as $activityId => $activity) {
    print '<h2>' . $activity . '</h2>';

    print '<ul>';
    // Loop over the dogs
    foreach ($dogs as $dogId => $dog) {
        print '<li><input type="checkbox" name="activity[' . $activityId. '][' . $dogId . ']"> ' . $dog . '</li>';
    }
    print '</ul>';
}

print '<input type="submit" value="submit" /></form>';

If the form is posted, you can loop over $_POST['activity'] to check the selected activities for a dog.