Hello list,
I found this RFC, describing a feature I wanted for a long time:
https://wiki.php.net/rfc/list_default_value
https://marc.info/?l=php-internals&m=144707619509724
(I don't know how to correctly reply to old emails that are not in my
inbox, sorry for that. I don't like mailing lists.)
I regularly want this kind of feature when unpacking a string with explode():
list($prefix, $suffix = NULL) = explode(':', $string);
if (NULL !== $suffix) {
...
}
This is for situations where a string is coming from somewhere, we
hope it has the format "aaa:bbb", but we cannot be sure.
Sometimes I use a workaround like this:
list($prefix, $suffix) = explode(':', $string . ':');
if ('' !== $suffix) {
...
}
Which works, but means a new string will be allocated in memory.
I find the list() with default values to be a decent and
understandable language feature.
-- Andreas
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