[RESOLVED] Global Variables in AJAX?

DevlshOne

Let's say I have an internal server-side script called "request.php" being called by a script named "request.js" but it is all being driven by "index.php". Is it possible to use global variables that I have declared in "index.php" from within "request.php"?

Weedpacket

Session variables would work here.

DevlshOne

Can session variables include objects?

bpat1434

I suppose if you serialize them.... not too sure if they can actually hold objects... perhaps references....

Weedpacket

Let's find out and see....
http://www.php.net/manual/en/language.oop.serialization.php

MarkR

In an AJAX application you would usually stay on the same page. Therefore, any properties you set on the window object (which some people call "Globals" in Javascript) will remain for the lifetime of the page.

Anything you want to last longer has to be persisted on the server (or the client; this requires either using cookies or something browser-specific like userdata)

Mark

bpat1434

Cookies wouldn't be able to be used would it... i mean cookies require a page refresh before they're available. Sessions don't..... or am I wrong?

MarkR

Cookies do not require a page refresh before they're available. Not if you set them client side. Moreover, you'd probably temporarily store the info in a Javascript variable as well.

Mark

DevlshOne

Thanks for all the support / advice. I'll explain why I asked and what I did to resolve it.

I run a string of gaming fansites using phpNuke and XOOPS, one of which I custom wrote a forums system for. I wanted to implement a feature where only a limited number of available emotes would appear rather than taking up half a page with them or popping a new window so I created a dropdown list with an onChange event to fill a DIV with the emotes. However, the emotes are pulled from a mySQL db on the fly and the mySQL queries are all OOP. What I ended up doing was dropping the classes so that I could get to the database.