Re: how to pass true/false or "no argument"

"John A. Grant" <jazrant@zsc.nrcan.zc.ca> wrote in message news:20011029170132.18355.qmail@pb1.pair.com... [...] > How do I distinguish between false and "$xxx parameter not > passed"? Do I use isset()? Do I use ===? Well, I guess I should have done some homework first. This code seems to work fine: function somefunction($text,$xxx=null) { if(isset($xxx)){ echo $xxx ? "true" : "false"; }else{ echo "null"; } echo "\n"; } somefunction("hello"); somefunction("hello",true); somefunction("hello",false); It prints: null true false which is what I want. -- John A. Grant * I speak only for myself * (remove 'z' to reply) Radiation Geophysics, Geological Survey of Canada, Ottawa If you followup, please do NOT e-mail me a copy: I will read it here