I have a need to call a function, where all the variables used might not be set. Is 
there a way to have a variable in a function have a default setting if the variable 
passed to the function is VOID?


//$zip is VOID

function myFunction($name, $phone, $zip){
 echo $name.$phone.$zip

can I write...?

function myFunction($name, $phone, $zip="6666"){
 echo $name.$phone.$zip

and then $zip will have a value of 6666 if $zip is VOID for some reason...?

I thought it was something like this, but I keep batting ZERO and there is no mention 
of this problem in the places I looked in the docs.

Can anyone throw me a bone?
Thanks gang!


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