Help with variables and Super Global $_GET['']

[morrty]

How come I can't get this to work, is it proper syntax?

$site = checkSite(strip_tags($_GET['site'])); 

This on the other hand does work:

$getSite = $_GET['site'];
$site = checkSite(strip_tags($getSite)); 

[AnthonySterling]

No difference, zero, nada, nowt.

Do you have more context? Maybe produce some code to reproduce?

[morrty]

Ok, think I figured out the issue.

It was in my if statement using isset().

Took that out and works with both now.

Edit: What is the difference between this:

if ($var1 && $var2 && $var3) {

} 

Compared to this:

if (isset($var1) && isset($var2) && isset($var3)) {

} 

[felgall]

Ok, think I figured out the issue.

It was in my if statement using isset().

Took that out and works with both now.

Edit: What is the difference between this:

if ($var1 && $var2 && $var3) {

} 

Compared to this:

if (isset($var1) && isset($var2) && isset($var3)) {

} 

The first is testing that none of them are false, the second is testing that all of them exist.

[AnthonySterling]

To add to Felgall's post, maybe a quick example..

<?php
$var1 = 'false';

$var2 = 0;

$var3 = false;

if($var1 && $var2 && $var3)
{
    #nope
}

if(isset($var1) && isset($var2) && isset($var3))
{
    #yup
}
?>

[morrty]

Ahh ok, I learn something new everyday.

Thanks for the help.