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Date: Sun, 24 Feb 2008 03:46:34 +0900
To: "Andrei Zmievski" <andrei@gravitonic.com>
Cc: "Marcus Boerger" <helly@php.net>, "Matvey Arye" <marye@geminisbs.com>, 
	"KOYAMA Tetsuji" <koyama@hoge.org>, internals@lists.php.net
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Subject: Re: [PHP-DEV] [RFC] Anonymous functions
From: rsky0711@gmail.com ("Ryusuke SEKIYAMA")

2008/2/24, Andrei Zmievski <andrei@gravitonic.com>:
> Do we have a working patch somewhere then?

Hi, I have added support for closures to my patches.

http://www.opendogs.org/pub/php-5.3-080223-anon.patch
http://www.opendogs.org/pub/php-6.0-080223-anon.patch
http://www.opendogs.org/pub/php-anon-tests-080223.tgz

Example:
<?php
function get_counter($i = 0)
{
    /**
     * 'static' modified anonymous function's
     *  uninitialized (or null) static variables
     *  are copied from the declared scope.
     */
    return static function(){
        static $i;
        return ++$i;
    };
}

$c1 = get_counter();
$c2 = get_counter(100);
var_dump($c1(), $c2());
var_dump($c1(), $c2());
var_dump($c1(), $c2());
?>

For recursive calling of anonymous functions and closures,
added function get_current_function_key().

<?php
$f = function($i = 0)
{
    echo "$i ";
    if (++$i > 10) {
        return;
    }
    $f = get_current_function_key();
    $f($i);
};

$f();
?>


And here is a Zend extension for PHP 5.2 which enables
anonymous functions, closures and square bracket arrays.

http://www.opendogs.org/pub/php_qiq-0.1.0pre.tgz

This has a few more features, but, at present, there is
no document...


Regards,

-- 
/**
 * Ryusuke SEKIYAMA
 * rsky0711@gmail.com
 */