passing form vars to php

[Anon]

well the thing is this:
i have this form, which can be almost anything, i mean while writing the php code i dont know what vars will be passed to the php script form the HTML form.
now the thing is that i need to somehow transfer these unknowen vars to a function...
here is a very simplistic code to show u what i mean:
<?
function gohome()
{
echo "rr=$rr<br>";
}

if (!isset($rr))
{
?>
<form method="post" action="<?self_php?>">
<input name="rr" type="text">
<input type="submit">
</form>
<?
exit;
}
gohome();
?>
all i get is that rr equals nothing...
now again i need to know how to transfer all the vars from the form to the function.
i tried $HTTP_POST_VARS['rr'] and it gave me same nothing....
help...

[Anon]

hello shanor,

the problem is that $rr is not visible
in function 'gohome'.
so either make it visible by using 'global':

function gohome()
{
global $rr;
echo "rr=$rr<br>";
}

or pass the variable to the function:

function gohome($var)
{
echo "rr=$var<br>";
}
gohome($rr);

hth
chris

[pinkbike]

Also depending on your PHP settings for the Register Globals setting you might have to use $HTTP_POST_VARS shanor suggested.

For portable code it is ALWAYS better to use $HTTP_POST_VARS so you can then run your code of servers that have different PHP settings and also increase your security level by writting code that does not depend on global variables that could come from an input that you may not expect.

Or even better with the newer versions of PHP, to use newer arrays
POST["variable"]
GET["variable"]
COOKIES["variable"]
FILES["variable"]
_SESSION["variable"]