> On 19 09 2015, at 23:22, Rowan Collins <rowan.coll...@gmail.com> wrote: > > On 19 September 2015 15:49:55 BST, Lester Caine <les...@lsces.co.uk> wrote: >> On 19/09/15 13:15, Rowan Collins wrote: >> If there was a bug with 'isset' it is that it returns false for a >> variable that IS SET to null. > > I honestly think that the only problem there is the name. If instead of > isset() and empty() we had quiet_is_null and quiet_boolval, nobody would be > the slightest bit surprised by their behaviour, and people looking to see if > an array key exists would be more likely to find array_key_exists. > > >> if the variable does not exist there is no way of testing for that >> state >> prior to calling is_null() > > Correct, there is no way of testing for that full stop.
There is, though, not sure if already mentioned: array_key_exists(“var”, get_defined_vars()) && is_null($var) -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
