help with arrays

[gum1982]

 

Hi im new to php so sorry about my code i know its wrong that's why i need some help im making a survey form that needs to analysis the percentage from a set off questions hear is my code it works fine but as i add more questions it justs get bigger and bigger. this is just snippet of one group and their is about 20.

 

Im trying to get my head around arrays at the moment would this be the right way?

 

<?php

if (is_array($_POST) && count($_POST) > 1) {

$exercise_value = $_POST['q1'];

$exercise_value1 = $_POST['q2'];

$exercise_value2 = $_POST['q3'];

$exercise_value3 = $_POST['q4'];

}

?>

<FORM METHOD="post" ACTION="">

<table width="805" height="789">

<tr><h2>Marketing</h2></tr>

<!----- SECTION ----->

  <tr>

  <td width="688">I know where I want .....</td>

  <td width="96">

  <input type="radio" name="q1" value="1">

  <input type="radio" name="q1" value="2">

  <input type="radio" name="q1" value="3">

  <input type="radio" name="q1" value="4">

  </td>

  </tr>

 

    <tr>

  <td width="688">I have a written marketing....</td>

  <td width="96">

  <input type="radio" name="q2" value="1">

  <input type="radio" name="q2" value="2">

  <input type="radio" name="q2" value="3">

  <input type="radio" name="q2" value="4">

  </td>

  </tr>

 

      <tr>

  <td width="688">I understand the .....</td>

  <td width="96">

  <input type="radio" name="q3" value="1">

  <input type="radio" name="q3" value="2">

  <input type="radio" name="q3" value="3">

  <input type="radio" name="q3" value="4">

  </td>

  </tr>

 

      <tr>

  <td width="688" height="22">Our current prices</td>

  <td width="96">

  <input type="radio" name="q4" value="1">

  <input type="radio" name="q4" value="2">

  <input type="radio" name="q4" value="3">

  <input type="radio" name="q4" value="4">

  </td>

  </tr>

    <tr>

  <td width="688" height="20">Percentage for this section.</td>

  <td width="96"><?php echo $exercise_value*100/16+$exercise_value1*100/16+$exercise_value2*100/16+$exercise_value3*100/16 . "%";

  ?></td>

  </tr>

 

<!----- SECTION END ----->

[seanlim]

I guess something like this would do?

$questions = 16;
$sum = 0;

for($i=1;$i<=$questions;$i++)
$sum += $_POST['q'.$i];

....
echo ($sum*100/$questions)."%";

[gum1982]

 

brilliant thanks ill give that a try