Cannot add values in forms

Raving_Idiot

In order to expand my php skill, I decided to work on a quiz. The initial format of my quiz was intended to work in the following manner:

I have my entire script set up using a switch. The default case is set to display a list of checkboxes:

I want these checkboxes to pass the value parameter as an integer to the case that creates the score composite. At first, I tried adding up all the variables like so:

 $composite = $q1 + $q2 + $q3; echo "Your compsite score is $composite out of 20.";

Instead, PHP echoed something similar to "Your score is out of 20." I then tried writing a while loop:

  $pass = 0;
  while ($pass != 9)
  {
	$q = "$" + "q$pass";

   if (!$q)
	 {
	  echo "$q";
	  $composite = $composite + 0;
   }

  else
 {
  echo "$q";
  $composite = $composite + $q;
 }

   $pass++;
   }

I still cannot record the values from the value parameter. Can the value parameter be used like this, or is there another way I need to do this? Thanks in advance.

suntra

First, try to echo $q1, $q2, $q3, $qn...

echo $q1 . "<BR />\n";
echo $q2 . "<BR />\n";
echo $q2 . "<BR />\n";

Do you see something or not ?

Raving_Idiot

Apparently, these checkboxes know their values, according to your snippet:

	echo "$q0";
	echo "$q1";
	echo "$q2";

Using this code returns "135" where $q0 has a value of 1, $q1 has a value of 3, and $q2 has a value of 5. Theoretically, I should be able to add these values, but PHP will not add these values together. I have found a workaround, however. This is my new formula:

 $composite = "$q0" + "$q1" + "$q2" + "$q3";

[/code]

So, I guess that pretty much is the solution to my problem. I do have a question, though. What datatype does value send (if datatypes are applicable to php) in a form? Thanks for the previous and upcoming help.

erick_w

I do have a question, though. What datatype does value send (if datatypes are applicable to php) in a form? Thanks for the previous and upcoming help.

Any.. 🙂