is_array() being strange

okay heres the code:

$que = is_array($known_traps);
echo "n!! $que !!nn";

its abit of code I'm using in a de-bugging attempt and what I was hoping for was a true or false output. But noooo, I get a nasty blank space instead. Can anyone suggest why this isn't working. It looks to me like is_array isn't returning a value but thats silly. Am I trying to use it wrong?

there's no expression.. try

Try :

when a bool variable is converted to string (ie when u try to echo it) it is converted to "1" or ""!

to see all kinds of variables (even arrays) use var_dump($var) or in your case:

var_dump($que)

or you could use the print_r() function