Error when sending,receiving parameters between flash and php

[fairyG]

Hi.I just joined today.Flash CS3 has myVars.sendAndLoad ("localhost / CenterStation.php" <LoadVars>, "POST");
The parameters from php will be held at <LoadVars>.It worked well.But I'm having a problem.
My Swf can pass and get better when I Ctrl + Enter in cs3.Swf is placed in the htdocs folder of xampp.It does not work when running it in htdocs.I notice no effect localhost.:eek:Flash did not find data from php mysql.
If I have a free host support php,How do I upload my swf and php up?
I'm talking about flash and the server.
php and flash can make a swf many participants at the same time?

[fairyG]

I've run my swf again at the root directory called: htdocs of xampp.It has a very long notice and a button:setting...
click it,firefox go to:
macromedia.com\support\documentation\en\flashplaye r\help\settings_manager04.html->select Edit location->swf to run and get everything from php.
Sorry I can not post link.
So,If I make a swf chat than 4 people or a multiplayer game, only one time Edit location(when swf has been uploaded to freehost support php).Players do not care Edit location.
Do I need to use the socket?
Please give me advice and experience.