Posted by Jordan Miller on 08/17/05 18:17

apparently the ampersand means to treat $link as a reference, not as
an optional argument:
http://www.softwareprojects.org/php-functions-12.htm

I think the way to do it would be to set a default value in your
function so that if a value is set by the calling statement that
would override it:

function doEmail($username, $link = false)
{
if ($link !=== false)
{
// "doEmail($arg1, $arg2);" gets sent here
print "$link $username";
}
else
{
// "doEmail($arg1);" gets sent here
print "$username";
}
}

haven't tested this, but give it a try.

Jordan



On Aug 17, 2005, at 10:00 AM, D A GERM wrote:


> I'm throwing a warning on a function I created. I
> thought a & in front of the argument was supposed to
> make it optional. Is there something else I need to do
> make that argument optional?
>
> <CODE>
> //I simplified the code
> function doEmail($username, &$link)
> {
> if (isset($link))
> {
> print "$link $username";
> }
> else
> {
> print "$username";
> }
> }
>
> doEmail($arg1);
> doEmail($arg1, $arg2);
> </CODE>
>
> Here is the error:
> Warning: Missing argument 2 for doemail() in
> /srv/www/htdocs/test-a/staff/email_scramble.php on
> line 24
>
> thanks in advance for any help.
>
> --
> D. Aaron Germ
> Scarborough Library, Shepherd University
> (304) 876-5423
>
> "Well then what am I supposed to do with all my creative ideas-
> take a bath and wash myself with them? 'Cause that is what soap is
> for" (Peter, Family Guy)
>
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