₦airaland Forum

Jarizod:
A site where u download educational textbooks

lekropasky:
I dont really understand what you mean, but i think you can just use a selection box which its options will contain the subjects, and put a button right beside it which you'll use to trigger a query according to question selected in the selection box/dropdown box.
Please, i also want to design a cbt app in JAVA, but i dont know where to get these Jamb past questions, can you tellme the method you used Or maybe give me if you already have em' in your database. THANKS.

DanielTheGeek:
Here are my suggestions for building a fully functional and secure exam software (Web App):

1: First familiarize yourself with the problems you are trying to solve, which is in this case: creating an exam practice application to help students excel.

2: Identify possible problems you may face during development so as to avoid them, don't wait till you get to the river before you cross.
Problem 1:
Security... If students are to excel using your software, it must be "CHEAT" prone and secure from all or almost all form of attacks (XSS, SQL Injection...).
Problem 2:
Speed... If you don't want students to get annoyed easily then make things quick
Problem 3:
Interactivity... If you don't want students getting bored and abandoning your software, make it interactive

Those are the main problems, tackle them and your software will totally stand out.

Now to the solution:

Using a framework will make things easier, one such as CodeIgniter, Yii or Laravel but if you're going procedural then you'd have to filter all form inputs using functions like mysqli_escape_string(), mysqli_real_escape_string(), preg_replace() and always try to close/disconnect your database connection when not querying: mysqli_close() to keep your software safe from mysql injections. Don't bother about whether a radio button can be used to carry out sql injections... Just strip/filter the value before passing it to the database that's all... Better safe than sorry.
You could either use AJAX or Websockets (RatchetPHP) to prevent cheating although websockets may be preferrable when a whole lot of people will be using your software concurrently. Try storing the whole question/page into a PHP variable e.g: $app = // The default page/question;
Then send the next question as a response to the AJAX call when the next button is clicked and vice-versa when the previous button is clicked...so the value of $app will contain the question which can be displayed on page using JavaScript's innerHTML or Jquery's .html() function. This is the easiest way I can think of currently.

As for speed, try caching pages for faster speed load times and leveraging between server sent requests and Local Storage, for non-sensitive temporary information you can switch to local storage and retrieve data from there destroying it when you no longer need it. CDNs are also a good bet, my guess is (no offense) it's too expensive... But I guess cloudflare is free other techniques include loading JavaScript files right before the closing </body> tag.


And down to interactivity, this is totally up to you... Don't just present questions the regular way.. Let some slide in, fade in, spin e.t.c add sound effects onClick. Note that interactivity and UI will attract end-users to use your software. You can get started by using libraries like Animate.css and use JavaScript to loop through different animations as questions load (there should be a tutorial somewhere on YouTube) and add a cool sound effects that's triggered on button clicks (Make it as cool as possible, don't add it at all if it doesn't feel right... It could be a distraction).

And those are my 50 Cents.

beatsbyj2g:
thats the most secure way i can think of, you wont have to worry abt smart students trying sql injections cos u wuont be querying the database per click of the link.
ot , i need to see ur algorithm eg ur step by stepapproach to solving this problem from the start till the moment you hit this rock so i can find a way around it for u.

but if am to do it i will use ajax to get the data on click of the link its fast n fun the page wont need to reload..

beatsbyj2g:
try using include statement.....

So u will have all ur page content intact but only dat section changes...




This will be the code to display the current subject page.. So u will treat each subject like individual pages...

E.g $s = $_Post['subject'];

Include "$s.php";

or if u know ajax or reactjs .. just call all d questions on from a separate php file into ur HTML file onclick of d link

Airforce1:
he kinda look gay

JayTommy:
Man beta talk[b][/b]

mizzbouqui:
You just need to make your faith stronger
You should believe everything is possible, there is no barren in Israel

CertifiedFreak:
The chic definitely paid for the wedding.

whiteandblack:
Thank you VenantCode [/b]for your contrubution. I have learnt many things online that has been helping me on my business now. I know I can learn this online but I thought this kind of course is a techinical and practical skill that needs someone to sit you and guide you on them practically. Learning online, if you have question or confuse on my area..i don't think you can ask your computer any question.

And also learning together with other like-minded people will likely help you achieve much. Just my thought...I stand to be corrected though.




[b]grayht Don't seal your lip o. What happened with New Horizons? Any bad experience with them?
Please Talk o. I need advice on this.



Thanks ANTONINEUTRON Are you sure studying those course in Uni will be good option? As it requires more of the practical not just having the theoretical knowledge on it. Athough am not really in pursuit of the BSc certificate on them. that's just the secondary reason not the primary reason why am going into that field. I just want what to learn the skills and learn it well, master it and make money with them.

KvnqPrezo:
Bro it's best for newbie to learn it

giles14:
never knew dere are Igbo in benue

osasu8876:
i will start up a data xompany business judging frm d pics 10gb is #1445 and i will sell 10gb for 3000 den my profit is more dan x2