when a value passed in form or q'string is empty..

[maya]

hello, I am trying to figure out how to deal with when not all elements
in a submitted form are filled out or when page expects a query string
and doesn't get one.. I tried the two conditionals below, but still got
errors:

$param= $_GET['msg'];

/*
if ($param != "") {
echo $param;
}
*/

if (isset($param)) {
echo $param;
}


query string is:

home.php?msg=se lected records have been deleted from the database.

(referrer pg is not always pg sending query string.. so need to deal
w/when no query string is passed..)

thank you very much..

[ED]

Re: when a value passed in form or q'string is empty..


"maya" <maya778899@yah oo.com> wrote in message
news:448f0765$0 $15795$14726298 @news.sunsite.d k...[color=blue]
> hello, I am trying to figure out how to deal with when not all elements in
> a submitted form are filled out or when page expects a query string and
> doesn't get one.. I tried the two conditionals below, but still got
> errors:
>
> $param= $_GET['msg'];
>
> /*
> if ($param != "") {
> echo $param;
> }
> */
>
> if (isset($param)) {
> echo $param;
> }
>
>
> query string is:
>
> home.php?msg=se lected records have been deleted from the database.
>
> (referrer pg is not always pg sending query string.. so need to deal
> w/when no query string is passed..)
>
> thank you very much..
>
>[/color]

try:
if (isset($_GET['msg']) && !empty($_GET['msg'])) {
$param = $_GET['msg'];
//do whatever
}
As an aside you should also be urlencoding the query string values:
home.php?msg=se lected+records+ have+been+delet ed+etc
not
home.php?msg=se lected records have been deleted from the database.
(see: http://uk2.php.net/urlencode )

cheers
ED