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Request #61682 allow use( $var as $varCopy, &$var as $varRef) syntax for closures
Submitted: 2012-04-09 15:41 UTC Modified: 2021-07-09 13:38 UTC
From: ninzya at inbox dot lv Assigned: cmb (profile)
Status: Wont fix Package: Scripting Engine problem
PHP Version: 5.4.1RC1 OS: Any
Private report: No CVE-ID: None
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From: ninzya at inbox dot lv
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 [2012-04-09 15:41 UTC] ninzya at inbox dot lv 
Description:
------------
I'd like to propose a syntax for closures that would allow to specify a name for 
the imported symbol (variable). Please see test script.

Test script:
---------------
$someLongArray =array( 1, 2, 3 );

$myFn =function() use( $someLongArray as $arrCopy, &$someLongArray as $arrRef ) {
  array_push( $arrCopy, 4);
  array_push( $arrRef, 5);
};

print_r( $someLongArray);// 1, 2, 3, 5

Expected result:
----------------
Expecting such syntax to be supported in the future.

Actual result:
--------------
Syntax error.

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 [2012-04-09 15:43 UTC] ninzya at inbox dot lv 
I'm sorry, in the test script a $myFn() call should follow $myFn definition:

$someLongArray =array( 1, 2, 3 );

$myFn =function() use( $someLongArray as $arrCopy, &$someLongArray as $arrRef ) 
{
  array_push( $arrCopy, 4);
  array_push( $arrRef, 5);
};

$myFn();

print_r( $someLongArray);// 1, 2, 3, 5
 [2012-04-12 15:34 UTC] laruence@php.net 
I have made a RFC for this, but since it's a new feature, it will take time to 
discuss :) 

https://wiki.php.net/rfc/useas
 [2012-04-13 04:18 UTC] laruence@php.net
-Assigned To: +Assigned To: laruence
 [2017-10-24 07:58 UTC] kalle@php.net
-Status: Assigned +Status: Open -Assigned To: laruence +Assigned To:
 [2021-07-09 13:38 UTC] cmb@php.net
-Status: Open +Status: Wont fix -Assigned To: +Assigned To: cmb
 [2021-07-09 13:38 UTC] cmb@php.net 
The RFC has been withdrawn years ago, and there has been some
opposition on the mailing list thread regarding that feature[1].
Thus I'm closing this ticket as WONTFIX.

Anyone who is still interested in the feature, please pursue the
RFC process[2].

[1] <https://externals.io/message/61404>
[2] <https://wiki.php.net/rfc/howto>
 
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