1. Make your own online quiz with PHP easily

Make your own online quiz with PHP easily

Disclaimer: All care No Responsibility. you follow the instructions provided at your own risk. I take no responsibility any damage you may cause. Please read the article in full before starting

I thought it would be fun to make a little quiz the other day and it was pretty simple, so I thought I would share it.
Basically, using post, if / else and some radio buttons you can make a simple quiz that looks good and is pretty easy to create and update.
the quiz runs in a single page, so first thing I do is to see if the quiz has already been taken by checking a post variable specifically for this purpose.

?php
if($_POST['done'] != 1 )
{?;
so now I know its not a completed quiz, so I start asking questions. for the purpose of this I am going to only use 2 questions.
I am going to open up a form, posting to the same page and then use radio buttons to set individual variables which I have called opvar2 and opvar1

form action="quiz.php" method="post" /;
Do you use a terminal?
input type="radio" name="opvar1" value="1"; Yes
input type="radio" name="opvar1" value="0"; No


how many domains do you manage?
input type="radio" name="opvar2" value="0"; I don't
input type="radio" name="opvar2" value="1"; 1
input type="radio" name="opvar2" value="2"; 2
input type="radio" name="opvar2" value="3"; 3
input type="radio" name="opvar2" value="4"; 4
input type="radio" name="opvar2" value="5"; 5 or more

OK so we have two variables opvar2 and opvar1 with corresponding values eg, ’2′ and ’4′ we need to close this form off and give it a submit button but we add in one more variable so we can identify whether or not this page has been submitted or not.

input type="hidden" name="done" value="1"/;
input type="submit" value="Submit...."/;
/form;
All the questions are primed and ready to go, pressing the submit button will refresh the page posting the results to itself. So now we need to look at that and do something with it!

?php
} else {
$lopvar2=$_POST['opvar2'];
$lopvar1=$_POST['opvar1'];

$total = $lopvar2 + $lopvar1;
print $total;
}
?;

So if the page is returning stuff in post, we go straight down to this last ELSE statement, pickup the variables and add them, for now it just posts them plainly but later I will demonstrate how to use a ‘if / else’ statement to get some nicer results!

Here is the full quiz I made

And its source code

I have worked on the Life of Riley comic code for a while and realised its a good base for anyone else to use for their own webcomic. its really simple and should be easy enough to modify to suit your webcomic with some simple HTML stuff.

Here it is on sourceforge

Here it is to download now

I have added on this version to include a basic mysql table to pull the titles out since they were not printed on the images, I recommend you print the comic titles (if you are naming them) on the images but if thats not feasible then here is the additional code to pull from a mysql database. it should be quite straightforward. I feed the request the $titleid which comes from the URL eg /comic.php?strip=1
mysql_connect('localhost or mysql.yourdomain.com','yourusername','yourpassword');
@mysql_select_db('databasename') or die( "err1");

$query="SELECT * FROM titles";
$result=mysql_query($query);
$title=mysql_result($result,$titleid,"title");

mysql_close();

Here is an SQL file of the table to get you started

The only major flaw is currently you need to update the end # of the comics if your comics list is dynamic, mine is static so it doesnt need to change.  a simple way of doing this could be instead of

comic.php

$lastcomic = "100";

create a new file called end.php which you update as you go

comic.php

//$lastcomic = "100"; commented out not useing this anymore
@include end.php;

end.php

$lastcomic = "616";

And now you can edit that end.php as you update. It would be much smarter to use Mysql for this as it would be a really simple call to find out the end but I wanted this comic to be flat and not to require SQL