The most common “workaround” is using hidden form fields. Using the values of these hidden fields you could check if the corresponding checkbox is set. This can all be done serverside.

I’m not exactly sure what you’re trying to do but I’m pretty sure there’s no need for javascript.

I’m not sure I follow, though I have tried different variations of hidden input fields. The problem that seems to persist is that the hidden field cannot be modified without using javascript (or some client side script).

Basically a scenario is:

<!-- record number 1 -->
<input type="text” name="name[]" />
<input type="checkbox” name="allowed[]" />

…

<!-- record number n -->
<input type="text” name="name[]" />
<input type="checkbox” name="allowed[]" />

So in the situation I basically have an arbitrary number of records for users, each with a name column and an allowed column, for the sake of this example. Every record can be edited at once, and I don’t want to name each checkbox specifically, just to refer to the entire column as an array.

Even if I were to add another hidden input, the hidden input values would not correspond to the checkbox values as they are toggled, without some form of client side script to do so. Example below:

<input type="text” name="name[]" />
<input type="checkbox” name="allowed[]" />
<input type="hidden” name="allowed_hidden[]" />

In the case then where there are three records, and only the second record has the allowed checkbox checked, I’ll get a name array with three values, an allowed_hiden array with three values, and an allowed array with one value, with no way to tie the single value in the allowed array to a specific row, as I need to.

Can you give an example of exactly what you are referring to? If there is a simple way of getting around this without client side scripting, I’m all ears.

Assuming that every user has an ID - since you are talking about editing I guess you are retrieving them from a database.

What about making the user ID the value of the checkbox and the value of the hidden fields. That way you can loop through the checkbox array and figure out, by means of user id, which user had its checkbox checked and which user did not.

Am I making any sense?

Another way, about which I’m not sure, is indexing the array yourself… I’m not sure how PHP (which I guess you are using) handles name=”allowed_hidden[0]” name=”allowed_hidden[2]” etc. But if it keeps your manual indexing it should automagically give you an array with null values for the fields that weren’t checked.

Jaap, your second solution is perfect; because PHP (yes, I’m using PHP) uses associative arrays, the submission can produce an array such as the following, which is in effect “null values”:

Array
(
[test] => Array
(
[1] => on
[4] => on
)

)

I can definitely make this work, and without client side scripting. Thanks!

Very useful page…I was facing a similar issue.

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