Check out the manual section on default parameters...

But the basics are:

function top($image = "null") {
        if ($image) 
                ...
        else
                ...
}

Or maybe:

That will set image to be null, so that you can call top either as:

        top();
or
        top($someimage);


-----Original Message-----
From: sunny AT wde [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 24, 2001 9:58 AM
To: php
Subject: [PHP] how do i give optional arguments to functions??


hi all!!

i'm writing functions like - 
-------
function top () {
 echo "blah blah blah";}
-------

what i want to do is make it so that i can do - 
-------
function top($image) {
 echo "blah blah $image blah"; }
-------

but also make the $image parameter in the top() as optional. so if
its not there, then tell php not to worry about it.

any ideas??

thanks!

sunny


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