php convert a $_GET to a $_POST

[jrough]

I have a value from a $GET from a desktop app. I really need it to be a $POST because I want to send it to an api and IE has a limit on the length of $GET string value pairs that I need to avoid. I could query the database but that means installing a web server for this particular database. It is a proprietary non open source database so if I can avoid that and just convert the $GET to a $POST I'm done. Do you have any ideas on this? The http get string url gets sent to my server
via the application. So I capture that in the php $GET but i'm wondering if I need to insert some Javascript to do the conversion? Should I make it a hidden form? Or should it be an XMLHTTPRequest? I want this code exactly only I would like the $GET to be a $POST.
thanks,

$addrArray = $_GET['addr']; ********
$addrArrayDecode = rawurldecode($addrArray);
$addrArrauDecodeUnserial = unserialize(addrArrayDecode);
$gm = & new EasyGoogleMap($googlemaps_api_key);

Set address point(s)

foreach( $addrArrayDecodeUnserial as $key => $value){
$gm->SetAddress($value);
$gm->SetInfoWindowText("This is a Test.");
}

$_POST['addr'];

I wonder if I need an XMLHTTPrequest object? I know this is a Javascript question but I just want to know if that

[dagon]

I'm not 100% clear but if you can't change the desktop app that sends the url (with query string) then you have no options, once it gets to you you can do anything you like with it.

[jrough]

Actually, I'm not sure about this anyway. If I capture the get from the app because it is sent to my server url and my php page then the php page unparses the url string and sends it to Google Maps. Google maps api is already a Javascript function. It doesn't get sent to I.E. so I think someone told me wrong. I don't need anything posted. Or maybe I should ask on the google maps developer site.