a countdown timer

[farshad_momtaz]

hi,

i need a timer that count down the time from 30 to 0 and if the timer is zero the script run php code # 1 ( the timer will stop and if user refreshes the page it is still zero) and if the user hit button # 1 the timer will restart to 30 and the script will run php code # 2 ( the timer will count down again until it is zero). i want the script to work between 1 pm to 3pm(so it starts automatically i at 1)and if the timer didn't get to zero until 3pm i want it to stop counting down and show a message or goes to a different page.

and obviously the timer should show a same number for all the users!

is there any way to do that and if yes how?

can i do it with ajax and if yes how?

 

thank you

 

farshad

[GoneNowBye]

If you want to do this in php you need something like the following:

 

endtime = (timecode of endtime)
current_time = time()

if (current_time >= endtime) {
  echo('TIMER EXPIRED');
} else {
  echo('time remaining: '.(endtime - current_time));
}

 

endtime for 30 seconds from now would be:

 

time() + 30, but if you do this on the page that the timer is calculated it will never expire you need to save it somewhere.

[farshad_momtaz]

thanks for you answer but the code that you just gave me have 2 problems

1- it doesn't count it down it just shows the number so the user have to refresh to get the new number

2- even user number one presses the reset button user number 2 have to refresh the page to see that the timer was reset

 

[farshad_momtaz]

this is an understand able version of what i just said

I am making a website and the page is oriented around a countdown system. If the timer ever reaches 0, the whole thing will stop. Below are the specifics:

 

I need a countdown timer that runs from 30 seconds to 0 seconds. If the timer is at 0 seconds, the script runs php code #1 (which makes the timer stop and if any user refreshes the page, it will still stay at zero).

There is also two buttons. If user clicks on button #1, the timer will get reset to 30 seconds remaining. Then the script will run the php code #2 (which allows the timer to begin counting down again from 30 seconds). If user clicks on button #2, the timer will get reset to 5 seconds remaining and same thing follows as the first button.

 

I want the timer counter script to between before certain hours (like let's say, noon-4PM). I want the counter to automatically begin at Noon with the above instructions. Also, if by 4PM, the counter never reaches 0 (meaning it never reaches php code #1), I want the timer counter to stop, disappear, and a message appear over it to link it to a new page.

 

And obviously the timer should show the same number (seconds remaining) for all the users on the website!

[GoneNowBye]

you wont get that; php is done SERVER SIDE the clients never see it,

 

The only thoing you could do and still use php is:

 

<?php
header('refresh: this.page.php; time=5');
?>

 

HOWEVER YOU MAY NEED TO CHECK THE SYNTAX, i dont use refresh, never needed to, sounds like you want javascript, but i am not sure if it has the power to make everything stop, and that is client side, however clients can just turn it off. the javascript that is.

[farshad_momtaz]

ok i made a javascript code that is a simple timer and it counts down to zero but the problem is the problem with that is when i refresh the page it goes back to 30 so there isn't a point in that and when another users is in the page our timers doesn't show the same time!!

and by the way cant i use the technology that is used in chat rooms or online chats?

[dreamwest]

You need to reference the timer with time() then just offset the difference

[Kaboom]

one guy is close its actually:

header ("refresh=30: url=whatever.com");

 

why would you want this anyhow?