timer help for exams urgent

[ranjitcool]

hello,

i want to make an online exam

i am cool with the q diesplay

i have twoo problems,

1. i need to set the exam time

2. i need to dispaly unique questions and not randomly.

the problem with java script for the first one...is i cant use it...i mean i need to keep changing the page and even if i use frames i cant use java script

all i want to do , if nothing is solved is to statically display time like ..."YOU HAVE 2 MINUTED LEFT"

something like that

secondly, i use rand(1,1000) function to randomly dispaly qs,

how do i make sure a q is not repeated

please help
thanx

[bpat1434]

Not sure about the time issue. I would think setting a variable to date("r") and checking against however long you want, or making a time and calculating the difference.

As for the questions:

Make a function out of the rand(1,1000).
Then, when a random question is chosen, see if it's ID is already in an array, and if so: run another, if not, display it.

Pseudo code. Not guarantted to work!!

<?php

function rand_q()
{
    $q_id = rand(1,1000);
}

if(in_array($q_id, $displayed))
{
    rand_q();
}
else
{
    $displayed[] .= $q_id;
    // DIsplay question here
}

?>

~Brett

[jkurrle]

Here's an idea for you...

Create a web page with 2 frames. The main frame contains your exam. A small frame at the bottom has your timer code. Basically, the timer code would work something like this:

Inside the code is some sort of meta refresh link that causes the frame to reload every 15 seconds or so.

Each time the frame reloads, the php code checks when the user started the test and subtracts that time from the current time. It takes that difference and subtracts it from the allocated time. If the result is greater than zero, show how much time is left to the user. If the result is less than or equal to zero, display that the time is up.

Hope this helps get your creative juices flowing...