sending more than one value

gin

hi everyone
I'm developing web based quiz (mcq) system, where it is required to send the answer instantly (there should be no submit button), ie. when the user chooses one of the available options of the question (one of the four radio buttons) then "post" will be ignited to send the value of the selected radio buttons , by this the answer is sent instantly . this is work greatly if i have one and only one question in the quiz , but if there are more than one question (which is the reality) then my server (Apache/MySql) wont be able to differentiate which question has been answered because the used method "post" is sending the selected value of the radio buttons but not the value of the answered question number.
i need your help to find a way to send the value and the question number associated with the selected question.

bradgrafelman

Design your radio buttons such that they contain an "id" (or some other identifying factor) that is unique for each question. For example, if you had question id#'s, you could do this:

<input type="radio" name="answer[1]" value="a">A<br>
<input type="radio" name="answer[1]" value="b">B<br>
<!-- etc. for question id#1 -->

In your PHP script that processes the data, $_POST['answer'] would be an array in which the keys/indexes would be the question id# and the value would be the radio button's value.

You can process this information like so:

foreach($_POST['answer'] as $question_id => $question_answer) {
    // process answers here
}

gin

bradgrafelman;10952553 wrote:
Design your radio buttons such that they contain an "id" (or some other identifying factor) that is unique for each question. For example, if you had question id#'s, you could do this:
<input type="radio" name="answer[1]" value="a">A<br>
<input type="radio" name="answer[1]" value="b">B<br>

In your PHP script that processes the data, $_POST['answer'] would be an array in which the keys/indexes would be the question id# and the value would be the radio button's value.

You can process this information like so:
foreach($_POST['answer'] as $question_id => $question_answer) {
    // process answers here
}

many thanks for your prompt support and great answer, could you please elaborate
more about the php code , especially

$question_id => $question_answer

is your idea will satisfy sending the answers question by question,,?