François Laupretre wrote on 22/09/2015 01:11:
Hi,
for those interested, a pull request implementing an exists()
construct (on PHP 7) is available for testing and reviewing :
https://github.com/php/php-src/pull/1530
exists() is modelled after isset(), with the difference that every
value (including null) returns true. Check the included '.phpt' test
file for examples.
I take it you didn't like my suggestion of separate functions for
hasitem() and variable_exists() then?
I think there are two very different use cases here, and combining them
will just add to the confusion which isset() already seems to cause.
A variable_exists() which took a string (in keeping with class_exists(),
function_exists(), etc) would also be more powerful, since you could
write things like variable_exists('foo_' . $i)
Regards,
--
Rowan Collins
[IMSoP]
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