Doc #74049 [Com]: Unclear statement about vital difference between versions

Edit report at https://bugs.php.net/bug.php?id=74049&edit=1 ID: 74049 Comment by: teo8976 at gmail dot com Reported by: teo8976 at gmail dot com Summary: Unclear statement about vital difference between versions Status: Open Type: Documentation Problem Package: Scripting Engine problem PHP Version: Irrelevant Block user comment: N Private report: N New Comment: By the way, it says "from PHP 7.1", but $this is not allowed in 5.x either Previous Comments: ------------------------------------------------------------------------ [2017-02-05 20:29:25] teo8976 at gmail dot com Oh, I see, "may not" as in "are not allowed to". That's confusing, as "may not" usually means "may or may not", as in "you don't know whether they do or they don't". It should read "cannot include", then. ------------------------------------------------------------------------ [2017-02-05 20:18:30] requinix@php.net I'm not sure I understand what the problem is. You don't know what "may not" means? It means these three examples function() use($_GET) { } - https://3v4l.org/hqpiD function() use($this) { } - https://3v4l.org/6Ten8 function($foo) use($foo) { } - https://3v4l.org/LiPQ4 are not allowed. ------------------------------------------------------------------------ [2017-02-05 19:00:49] teo8976 at gmail dot com Description: ------------ --- From manual page: http://www.php.net/functions.anonymous --- Regarding the "use" language construct: "Closures may also inherit variables from the parent scope. Any such variables must be passed to the use language construct. From PHP 7.1, these variables MAY NOT INCLUDE superglobals, $this, or variables with the same name as a parameter" (emphasys added) What the heck does "MAY NOT" mean?? Either they include or they don't, or they do in some cases, in which case the docs MUST specify which ones are included and which one are not, in what cases and depending on what. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=74049&edit=1