note 92150 deleted from function.empty by danbrown

Note Submitter: Strata_ranger ---- There is one caveat to mlibazisi mabandla's example: If you attempt to call that function on an unset variable it will throw an E_NOTICE as you call it because the variable gets evaluated before it is passed to the function. As such, there are no easy substitutions for making a string '0' be silently considered non-empty. As Greg Hartwig mentioned last year, empty($var) for most casual purposes has the same effect as (!$var), with the difference that the latter will throw an E_NOTICE on unset variables whereas empty() will silently return false.