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Date: Sun, 18 Aug 2024 09:59:07 +0100
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Subject: Re: [PHP-DEV] Should there be a `get_declared_enums()` function ?
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From: imsop.php@rwec.co.uk ("Rowan Tommins [IMSoP]")



On 18 August 2024 05:46:09 BST, Mike Schinkel <mike@newclarity=2Enet> wrot=
e:
>I know that those functions can be called as a function and return a valu=
e like the following:
>
>$return_value =3D include($path);

You are right that it has a return value, but wrong to put its argument in=
 parentheses=2E This will *not* do what you expect:=20

$success =3D include($path) && somethingElse();

Because include is not actually a function, what is evaluated is `$path &&=
 somethingElse()`, then either `include true` or `include false` (which wil=
l of course fail)=2E

You instead need to write this:=20

$success =3D (include $path) && somethingElse();

I thought I'd added this example to the manual, but now can't find it=2E

Consequently, we can't just define optional parameters like we would a nor=
mal function=2E We *could* extend the syntax to allow "include $path, $what=
ever;" but it probably wouldn't feel very natural=2E It would be a syntax e=
rror to write "include($path, $whatever)" just as "echo $foo, $bar" is vali=
d, but "echo($foo, $bar)" is not=2E

Regards,
Rowan Tommins
[IMSoP]