limiting the number of checkboxes checked

[digitalgod]

hey guys,

I'm trying to limit the number of checkboxes a user can check. Need the limit to be dynamic but for testing purposes I'm trying to do it with a fixed number.

the checkboxes look like this

<input type="checkbox" name="winner[]" value="'.$row['username'].'">

is there any way of doing that if the name of the checkbox is an array? It really needs to be like that.

[degsy]

http://degs.co.uk/test/hct/loop_through_checkbox_check_limit.htm
http://degs.co.uk/test/hct/loop_through_checkbox_check_limit_php_array.php
http://degs.co.uk/test/hct/loop_through_checkbox_check_limit_to_1.htm

[digitalgod]

thanks! but can you please tell me what's the php for though?

[degsy]

Link 2 does. Maybe you should look at it  ::)

[digitalgod]

lol what I meant was, what does the php do in all of this, why does it check a db?

[degsy]

It's a generic example. You take that part you need and work with it.

[fenway]

The pseudo-code for the function should look like the following:

-iterate through all form elements
-check each element for trailing "[]"
-iterate though the elements .length
-count the times .checked is true
-validate against "allowed" number