Passing Variables

I am having trouble passing a variable through the URL.

b.php =

<?
if ($b != '') {
echo "$b";
} else {
echo "hello";
}
?>

No matter what you say b is, it doesn't work.

Any help is appreciated. ~ ep0ch

if ($_GET['b'] !='' ) {
  echo $_GET['b'];
}
else {
  echo "Hello";
}

hope that helps

If I remember correctly, the parameters are passed from the client to the server (PHP) via $HTTP_XXXX_VARS (XXX = GET/POST).

In your case, to exctract the "b" parameter would be as follow:

$param_b = $HTTP_GET_VARS['b']; // or just $HTTP_GET_VARS['b']

Hope this helps.

did you type corectly?

<?
if ($b != "") {
echo "$b";
} else {
echo "hello";
}
?>

You could use this code if register globals is off:

$vars =& ${"HTTP_".$REQUEST_METHOD."_VARS"};		
	foreach($vars as $k=>$v) {
		$$k =& $vars[$k];
	}

This will create references, alternaticly you could just use extract:

extract(${"HTTP_".$REQUEST_METHOD."_VARS"});

The reference for this function is here, there are a few other options available: