When was function use closures implemented in PHP?

Question

I couldn't find the section in the PHP manual that explains use

I have the code

$num = 0;
array_walk_recursive($_REQUEST, function($mValue) use (&$num){
           $num++;
        });

and my Eclipse complains:

Parser error "'{' expected in compound-statement.

So I guess this was implemented in some PHP version.

"I couldn't find the section in the PHP manual that explains use" --- have you checked an anonymous function reference page? — zerkms, Dec 05 '13 at 22:00
See also http://www.php.net/manual/en/functions.anonymous.php#~Changelog — mario, Dec 05 '13 at 22:00
@zerkms It's a text search anchor; very much *non-standardized*. There were some whatwg discussions on such features, which however didn't go anywhere. So I made a [userscript](http://userscripts.org/scripts/show/119759). — mario, Dec 05 '13 at 22:10

Darragh Enright · Accepted Answer · 2013-12-05T22:02:14.377

1

Anonymous functions/closures and the use language construct were implemented in version 5.3.0

edited Dec 05 '13 at 22:02

answered Dec 05 '13 at 21:59

Darragh Enright

1

And it would be nice if it was a reference to the documentation in the answer – zerkms Dec 05 '13 at 21:59
Hi @zerkms, just beat me to it! – Darragh Enright Dec 05 '13 at 22:00

1 Answers1