Php：多个复选框

Question

I have the following checkbox created by a loop:

<input type='checkbox' value=0 name='<?php echo $question_id; ?>' />

Each checkbox will have a different ID, and when the user checks several checkboxes, I would like to gather all the id's and insert it into a table that relates an 'event' table with a 'questions' table.

However I am not getting the ids...I know I am supposed to use an array, but is that in the name attribute or the values attribute? Also, how do I pass on the IDs...does that go into the values field?

Answer 1

In HTML:

<input type='checkbox' value=1 name='checkboxname[<?php echo $question_id; ?>]' />

In PHP:

$set_checkboxes = array_keys($_POST['checkboxname']);

Or, alternatively:

In HTML:

<input type='checkbox' value="<?php echo $question_id; ?>" name='checkboxname[]' />

In PHP:

$set_checkboxes = $_POST['checkboxname'];