sever problem $_GET $_POST etc

[something else]

Does anybody know why a server would be not collecting $_GET`s or $_POSTS etc?
eg:

echo "<a href=\"index.php?hello=hello&amp;world=world\">Same Page</a><br/>";
$text = "Debug: ".$_GET['hello']."=".$_GET['world'];
echo $text;
//out come is:  Debug: = 

I know an answer would be to register globals on but its not a good answer :/

[metulj]

like this ?

echo "<a href=\"index.php?hello=hello&amp;world=world\">Same Page</a><br/>";
@$hello = $_GET['hello'];
@$world = $_GET['world'];
$text = "Debug: ".$_GET['hello']."=".$_GET['world'];
echo $text;
//out come is:  Debug: = 

[something else]

i havent tried using "@" to show the error as this problem is not happening with my pc but is on my friends pc (and some peoples phones) so im trying to work blind :/ - but i will try this thankyou

even with using $hello = $_GET['hello']; doesnt work.....
however filtering it through mysql_escape_string() seems to work, which is all well and good but will cause silent errors when the variables are not going into the databse.....

Also mysql_escape_string() doesnt help me for things like $_FILE which is also returning blank

im wondering if i have done something wrong in one of my scripts that has changed something in php.ini
I have spoken to the hosts about this and they seem to have no clue why this would be happening and to be honest i dont think they believe me as it works fine for them like it does for me :/

[arnage]

Because globals needs to be checked if its isset and not null, either wit isset() or empty().
The easy way is ternary:

$hello = isset($_GET['hello']) ? $_GET['hello'] : null;