An approach that many people take is to simply have a function return success
or failure, and have any data that needs to be propogated upwards assigned to
pass-by-reference parameters. I like this approach because it removes any
question as to what a function returns. One drawback is that it becomes
difficult to see where values are getting assigned when debugging.
i.e.:
function getMeTwoThings(&$first, &$second) {
$first++;
$second--;
if ($first == $second)
return true;
else
return false;
}
Alternatively, you can return an array of values and use the list() construct to
assign them.
i.e.:
function foobar() {
return array($a, $b);
}
list($a, $b) = foobar();
John
On Mon, 12 Feb 2001, James, Yz wrote:
> Hrms. Got a small problem.
>
> I'm now using functions on a regular basis, but I've come to another
> sticking point with them: returning multiple variables from the function...
>
> Here's a really quick example (nothing to do with what I intend to use the
> functions for):
>
> function CUP ($connection,$username,$password) {
>
> if (($username) && ($password)) {
> $sql = "SELECT username, password FROM table
> WHERE username = '$username' AND password = '$password'";
> $result = etc etc
> $num = mysql_numrows($result);
>
> if ($num != 0) {
> $valid = "yes";
> }
>
> return $valid;
>
> }
>
>
>
> $correct_user = CUP ($connection,$username,$password);
>
> Now, if the user is correct, I'd get a return of
>
> $correct_user = "yes";
>
> What if I wanted to "return" more than one variable from the function? And
> how would I assign it a name? Like the actual variable, or is that just not
> possible?
>
> I've tried
> return $var1,$var2;
> But got an error.
>
> As always, tia :)
>
> James.
>
>
>
>
--
John Donagher
Application Engineer
Intacct Corp. - Powerful Accounting on the Web
408-395-0989
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