如何在 PHP 中制作倒数计时器？

Question

How can I make a countdown timer in PHP which starts at 40 seconds and counts in this format:

40.59 - 40.48 - 40.47 - etc etc

I also need a button that resets it.

Is this possible in PHP? Do I need to use JavaScript?

Answer 1

You will need JavaScript to achieve a timer.

Some useful resources:

http://www.elated.com/articles/javascript-timers-with-settimeout-and-setinterval/

http://www.dynamicdrive.com/forums/showthread.php?t=61593

http://www.devshed.com/c/a/JavaScript/Using-Timers-in-JavaScript/

Answer 2

You would do this entirely on the client side using Java* script *, there are many examples if you google for javascript countdown , ex http://keith-wood.name/countdown.html .

Answer 3

PHP is executed server side; You'll need to use JavaScript or some other client-side language (flash, silverlight, java applet, etc) if you want it displayed to a user in real-time.