Php function argument error suppression, empty() isset() emulation

Question

I\'m pretty sure the answer to this question is no, but in case there\'s some PHP guru

is it possible to write a function in a way where invalid arguments or non exi

Answer 1

@Brian: I use a trinary operation to do the check for me:

return $value ? $value : $default;

this returns either $value OR $default. Depending upon the value of $value. If it is 0, false, empty or anything similar the value in $default will be returned.

I'm more going for the challenge to emulate functions like empty() and isset()