URL querystring with a php include - php

Question

I'm trying to include a file to output in a tab on a page. The file itself will pull up just fine, but when I try to add the required querystring to it, it gives me a "failed to open stream: No such file or directory" error.
I've tried just a straight include and tried setting the querystring as a variable. Here's where I'm at right now.
$listingVars = '?mls=' . $_REQUEST['mlid'] . '&lid=0&v=agent';include("agentview.php$listingVars");
Has anyone successfully done this?

Answer 1

You can't include a query string in an include().
Assuming this is a local script, you could use:
$_REQUEST['mls'] = $_REQUEST['mlid'];
$_REQUEST['lid'] = 0;
$_REQUEST['v'] = 'agent';
include("agentview.php");
if it's a remote script on a different server, don't use include.

Answer 2

I created a variable on the 2nd page - and passed it a value on the first page - and it worked for me:
*Page with include: 'index.php'
<?php $type= 'simple'; include('includes/contactform.php'); ?>
*Page included: 'includes/contactform.php'
switch($type){
case 'simple':
//Do something simple
break;
default:
//Do something else
break;
}

Answer 3

I modify the accepted answer given by Frank Farmer a bit to work for different queries:
Include twice would cause problem:
$_REQUEST['mls'] = $_REQUEST['mlid'];
$_REQUEST['lid'] = 0;
$_REQUEST['v'] = 'agent';
include("agentview.php");
//changing the v to another
$_REQUEST['v'] = 'agent2';
include("agentview.php");
For those who encounter this multiple include problem, you could wrap you code inside "agentview.php" in a function:
Inside agentview.php
function abc($mls,$lid,$v){
...your original codes here...
}
file need to call agentview.php
include_once("agentview.php");
abc($_REQUEST['mlid'], 0, 'agent');
abc($_REQUEST['mlid'], 0, 'agent2');
Hope it helps someone encounter the same problem like me and thanks Frank Farmer for the great solution which saved me alot of time.