What is the best way to refresh the content of a var that is included? For example, I have this code:
<marquee>
<?php
include('note.php');
?>
</marquee>
This is great, as I can show on the page the contents of note.php
. Say I change note.php
but I don't want users refreshing to see the changes...is there any way to refresh the included file every 3 minutes for example?
To refresh only a portion of a page, you'll have to use some kind of Ajax Request : once the page has been sent to the browser, the server has done it's job, and cannot modify is anymore : the request of fetching a new portion of the page as to come from the browser.
You could do some Ajax requesting "by hand", it's not that hard ; but I'd rather suggest that you take a look at some of the great javascript frameworks that exists out there -- that might be helpful in the future, when adding more functionnalities to your application.
For instance :
Ajax.PeriodicalUpdater
$.load
只有通过使用ajax之类的调用..看一下原型或jquery来获得不错的JS库来帮助解决这个问题。
Unless you just want to put some javascript in to refresh the page every three minutes, you'll need to look into another technology, namely AJAX. As far as I know, PHP can not do this alone.
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