help -> isset $ == "something" include "this"

[taintedtool]

Im at the mercy of limited php here and cant find an answer:

Overview of what I want to do:
Trying to assign a variable named $nav which can only be services, clients, contact, and about.
ex: ?nav=services

essentially, I want to know what nav equals and include body content accordingly:

code sample that is failing:
<?php
if (isset(($nav) == "services") include(("featuredservices.htm"));
?>

ideally (using this bad code) i would like it look like this:
<?php
if (isset(($nav) == "services") include(("featuredservices.htm"));
else if (isset(($nav) == "clients") include(("featuredclients.htm"));
else if (isset(($nav) == "about") include(("about.htm"));
?>

If you know why my code is failing and you can give me a code sample that functions like what i have here, THANK YOU THANK YOU....

Help would be greatfully appreciated!

[sarahk]

isset() just tells you if the variable is there

you need

<?php
if (isset($nav) && ($nav == "services")) include(("featuredservices.htm"));
?>

[mahendrakalkura]

u can use this i guess

<?php

if (isset($nav) && ($nav == "services"))
        $url = "featured".$nav.".htm";
        include("$url"); 
?>

you really have some real problems with braces

sorry to say that , but its all messed up in ur example

[rpanning]

Give this a try:

<?php
if (isset($nav)) {
    if ($nav == "services") {
       include("featured".$nav.".htm");
    }
    elseif ($nav == "clients") {
       include("featured".$nav.".htm");
    }
    elseif ($nav == "contact") {
       include("".$nav.".htm");
    }
    elseif ($nav == "about") {
       include("".$nav.".htm");
    }
}
?>

[andrewtayloruk]

<?php
if (isset($nav)) {

switch($nav) {

}
?>

[andrewtayloruk]

<?php
if (isset($nav)) {

switch($nav) {

  case 'clients':
      include 'clients.php';
      break;

  case 'contacts':
      include 'contacts.php';
      break;

  default:
      die('Menu Error');

}
}
?>