I want to create a function like this

function myfunction($var1, $var2){
..........
..........
}

I know I can call this function by

echo myfunction(argument1,argument2);

am i right? If yes, now what I want is:

To use this function I have to pass 2 arguments; argument1 & argument2 as the function receives these agruments by $var1 & $var2 as parameter.
Now I want to use my function, user must have to provide 1st argument and the second argument is optional.

How I can make second argument optional for calling this function?

Thanks in advance

Best Regard:
Md. Zakir Hossain (Raju)
www.rubd.net
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__________________
Best Regard:
Md. Zakir Hossain (Raju)

www.rajuru.xenexbd.com - my blog with PHP scripts, PHP Book Review and many more