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Message-ID: <cd5680a20812141159r511af389kb9b66acf9cbf0e0b@mail.gmail.com>
Date: Sun, 14 Dec 2008 22:59:38 +0300
To: "David Grudl" <david@grudl.com>
Cc: "PHP internals" <internals@lists.php.net>
In-Reply-To: <49453D0F.6030405@grudl.com>
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References: <49453D0F.6030405@grudl.com>
Subject: Re: [PHP-DEV] Ternary operator optimization tip
From: indeyets@gmail.com ("Alexey Zakhlestin")

On Sun, Dec 14, 2008 at 8:06 PM, David Grudl <david@grudl.com> wrote:
> Hello,
>
> ternary operator is very nice syntactic sugar...
>
>   $foo = $cond ? $bar : $baz;
>
> ...but it may slows down scripts. When $bar is array or relative big string,
> it is better to aviod sugar and use if:
>
>   if ($cond) $foo = $bar; else $foo = $baz;
>
> and reference counting will be used.
>
> I don't know how difficult it is to implement, but it can be very useful
> speed optimization for PHP 5.3 to improve ternary operator to use reference
> counting.

Do you have any numbers?



-- 
Alexey Zakhlestin
http://www.milkfarmsoft.com/