On Wed, May 2, 2012 at 11:10 AM, Pierre Joye <pierre....@gmail.com> wrote:
> hi, > > On Wed, May 2, 2012 at 10:46 AM, Laruence <larue...@php.net> wrote: > > > so I think if you want to change empty, you should also change isset. > > An expression is not set per se. isset goals, by design, from the very > 1st day, is to test the existence of a variable and a variable only. > "Returns TRUE if var exists and has value other than NULL, FALSE otherwise." $foo=null; var_dump(isset($foo)); //prints bool(false) > > empty() on the other hand, tests if something is empty, and only if it > is empty. The result of an expression can be empty. > > an expression can also have a value of null. -- Ferenc Kovács @Tyr43l - http://tyrael.hu
