On Oct 4, 2022, at 21:46, Eugene Sidelnyk <[email protected]> wrote:
> $foo = (int|float)$bar;
As written, I wouldn't know what to expect this to do with a string value --
would it cast it to int or float?
Based on the behavior of your second example, the answer appears to be "float",
so this syntax seems to be equivalent to:
$foo = \is_int($bar) ? $bar : (float) $bar;
Or, even more concisely:
$foo = 0+$bar;
I'd be even less sure what to expect when casting to other union types. What
would the expected result of casting a string to (bool|array|object) be, for
example? I'm not sure there are many meaningful operations which could be
constructed here.
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