Dynamic content with PHP like javascript?

Hello. I was wondering if there is a way to create say a clock, which would continue ticking along as the seconds pass. I know this can be done with javascript, but I would like to do it in PHP if it is possible. I have already gotten the time to display fine, and the countdown of how long is left until a certain event... but as it is its only static, and you have to refresh all the time to see the current countdown. Is there any way to do what I am trying to do using PHP? thanks in advance Generic Player