Dynamic 'Market'

Ok i'm still learning php and have been toying with the idea of creating a small game to expand my knowledge!

Now then one part that puzzles me is lets say I have a stock market, which is going to rise and fall, how do i make the amrket appear if it changing all the time? do i use a php script? or do i use another language to interect with the server?

All you need to use is html's Meta tag:

PHP Code:

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<META HTTP-EQUIV=Refresh CONTENT="5; URL=http://www.yoursite.com/yoururl.php"> 


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It will refresh in every 5 seconds. You can change 5 to number you like.

you could probably do it with JavaScript (but not sure) or like RyanEllis said have it refresh the page every 5 seconds