Question

I have an HTML form with a dynamic number of checkbox fields, all of which are encapsulated within a submit form. When the form is submitted, I want to loop through the values of each checkbox field with a PHP script. At the same time, I have to keep a certain ID associated with the checkbox field so that when I loop through each one in my script, I can use the ID to update the correct row in my database. Currently, I have:

<input checked="checked" name="attended_<?php echo($pid); ?>"

I’m just not sure how to go ahead and access all of the attended[] values from my PHP script (and keep the ID at the same time). Would I use a multidimensional array like the following?

<input checked="checked" name="attended[<?php echo($i); ?>][<?php echo($pid); ?>]; ?>"

I’d appreciate any help on this. Thanks!

Answer 1

Usually when I create checkboxes I put an index in the name. This way you can loop through each checkbox in your submittion code.

<input type="checkbox" name="cbGroup[1]" value="y" />
<input type="checkbox" name="cbGroup[2]" value="y" />
<input type="checkbox" name="cbGroup[3]" value="y" />

and in your PHP

foreach($_POST['cbGroup'] as $index=>$checkbox) {}

You’ll want to make sure your $_POST[‘cbGroup’] is set though because it won’t be if the checkbox isn’t checked.

Edit: Sorry, I should learn to read the question fully heh 🙂 I use multidimensional arrays in PHP with HTML inputs all the time and I think it’s the way I would go.