Could this be a logic problem?

[sys4dm1n]

<?php 
if (isset($_REQUEST['x'])) { 
	if ($page == contact) {
		echo "contact.php";
		} elseif (!isset($_REQUEST['x'])) {
	echo "iframe.php?x=home"; 
	} else { 
	echo "iframe.php?x=$page"; 
	}
	}
	?>

I am trying to do the following:

if the value of x=contact, print contact.php
if the value of x=$page ($page is defined in the same file as $_REQUEST['x']), print iframe.php?x=$page
if there isn't a value of x, display iframe.php?x=home

The script works except displaying iframe.php?x=home if x doesn't have a value.

Any ideas?

[alimadzi]

One problem I see right away is that you're not quoting the string in your if condition. Also the indentation is hard to follow. Here's your code with proper indenting and the string properly quoted:

<?php
if (isset($_REQUEST['x'])) {
    if ($page == 'contact') {
        echo "contact.php";
    } elseif (!isset($_REQUEST['x'])) {
        echo "iframe.php?x=home";
    } else {
        echo "iframe.php?x=$page";
    }
}
?> 

Still not sure exactly what you're trying to do though. Why do you have a test for 'x' not being set inside a block that only executes if 'x' is set?

[laserlight]

The script works except displaying iframe.php?x=home if x doesn't have a value.

That is because you have unreachable code. Line #6 in the code just below is only reached if (isset($REQUEST['x']) && !isset($REQUEST['x'])) is true, but (x && !x) for any boolean variable x is always false.

<?php
if (isset($_REQUEST['x'])) {
    if ($page == 'contact') {
        echo "contact.php";
    } elseif (!isset($_REQUEST['x'])) {
        echo "iframe.php?x=home"; // Line #6
    } else {
        echo "iframe.php?x=$page";
    }
}
?>

What you really want to write is something like this:

<?php
if (isset($_REQUEST['x'])) {
    if ($page == 'contact') {
        echo "contact.php";
    } else {
        echo "iframe.php?x=$page";
    }
} else {
    echo "iframe.php?x=home";
}
?>