Dynamically updating part of a page

[aewarnick]

Is it possible to only update PART of a page with php? I know about print but it seems to only write to the bottom of the page.

I'd like to use a variable that gets updated with new data then reload the part of the page that the variable effects.

[drew010]

well, you cant reload a part of the page without reloading the whole thing unless you use frames or iframes. print will work anywhere you want, doesnt have to be on the bottom also.

[goldlikesnow]

Not with PHP you can't, but I don't see any reason to refresh the whole page and only change te variable you want. there will not be a lot of performance lost as the rest will be cashed. If you have a static variable which can be known before parsing, you could use Javascript to change that variable without refreshing your page...

[aewarnick]

So I have to use JavaScript for this? Know of any examples of how to reload part of a page with JavaScript?

[goldlikesnow]

Hi,

You mentioned 'update', javascript can change a displayed value by php determined during parsing, not after.

But as mentioned before, why not resubmit the whole page?

The Javascript will look something like this:

<a href="" onlick="submit()"> refresh page </a>

you can make this action go on a mouseover, onblur, timed, etc...

You could also use frames and let Javascript update only this particulair frame.

Good luck

P.S. If you're really only want to have a dynamic real-time part in your static page you wil have to write a Java (not script) Applet, but that is a whole diffrent story.

[aewarnick]

Aren't frames a problem to some browsers?