But that means I have to pre-process data lists that just happen to contain empty strings so that they won't disappear on me.
Huh? An empty string already *has* disappeared on you. ;-)
> This seems to violate least surprise.
I'd be much more surprised if an empty string *didn't* disappear. After all, you wouldn't expect:
$str1 = "nothing" . "to" . "see";
to be different from:
$str1 = "nothing" . "" . "to" . "" . "see";
I also don't expect
$x = ''; $y = "aaaa $x bbbb";
to assign '' to $y either, but that's the equlvalent of what you say form() will do.
I was more worried about arrays of items some of which are empty strings and having items disappear out my repost because form() throws them away.
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