Radio Inputs and PHP

[Zakhary]

I got problems with radio inputs and PHP. I make a quiz and I set 4 optional answers each question. To make inputs not multi select able I gotta set their names the same. Unfortunately, PHP reads them by names and it makes PHP fail. How can I avoid it? I set optional number 1-4 for each answer. My example website and code: http://tourney.adrenalinex.co.uk/max-o-meter/index.php

 

<form action="quiz_script.php" method="post">

1. Question number one:<br />

<input type="radio" name="q1_a1" value="q1_a1" /> Answer 1<br />
<input type="radio" name="q1_a2" value="q1_a2" /> Answer 2<br />
<input type="radio" name="q1_a3" value="q1_a3" /> Answer 3<br />
<input type="radio" name="q1_a4" value="q1_a4" /> Answer 4<br /><br />


<center><input type="submit" value="I want to check the answers!" class="submit" /></center>

</form>

 

<?php

$q1_a1 = $_POST['q1_a1'];
$q1_a2 = $_POST['q1_a2'];
$q1_a3 = $_POST['q1_a3'];
$q1_a4 = $_POST['q1_a4'];

$score = 0;

if ($selected_radio = $q1_a1) {
$score = $score+4;
} else if ($selected_radio = $q1_a2) {
$score = $score+3;
} else if ($selected_radio = $q1_a3) {
$score = $score+2;
} else if ($selected_radio = $q1_a4) {
$score = $score+1;
}

echo $score;

?>

[mikhl]

Give each questions radio buttons the same name value, e.g. "q1", these are then grouped together as one input  Then in the PHP just retrieve that input and check it against an array of list of variables containing the correct answers.

 

$answer = $_POST['q1'];

if($answer == $q1_answer){
     $score += 1;
}

 

Hope this helps. Sorry if there is something wrong with the code. Done this on my phone

[Ksuil]

--REDACTED I was thinking of select boxes--

 

[carugala]

methinks you have to do something to the html form element(select/cb...), like name=name[]