Re: isset

Richard Lynch wrote: > On Mon, April 16, 2007 5:35 pm, Tim Earl wrote: >> What about in the following context? >> >> $arr = array(); >> If (!empty($arr)) { } >> >> This is where i have found it to be the most usefull... > > If I'm already certain that it's an array, I just use 'count' personally. > > 'empty' takes a mixed data type, and could return TRUE for, say, 'foo' > even though you are expecting an array there. > > I think it's a better practice to use the "right" weapon and use > count() on an array to see if it's empty or not. php -r 'var_dump(count("foo"));' outputs: int(1) so my strategy is usually if (!empty($r) && is_array($r)) { // good to go. } if I know it's an array I'll definitely use empty() over count() .... count() needs to actually count the items where as empty() can return false as soon as it finds a singel element ... maybe I'm mistaken - if so please put me right.