Hi
I'm trying to understand why PHP 7 hashtables are more efficient than
PHP 5 hashtables.
I'm confused about hashes that are in collision.
In PHP 5 there were a linked lists to resolve collisions.
What about PHP 7 ? Are there still linked lists ?
I read somewhere that the solution taken in PHP 7
https://nikic.github.io/2014/12/22/PHPs-new-hashtable-implementation.html
On Tue, May 16, 2017 at 4:28 AM, Pawel Por wrote:
> Hi
>
> I'm trying to understand why PHP 7 hashtables are more efficient than
> PHP 5 hashtables.
> I'm confused about hashes that are in collision.
> In PHP 5 there were a
PHP 7 still uses a kind of linked list for collision resolution (trough
zval.u2.next) and this is still an expensive operation.
From: Pawel Por
Sent: Tuesday, May 16, 2017 12:28:36 PM
To: internals@lists.php.net
Subject: [PHP-DEV] Hashtable collision resolution
On Tue, May 16, 2017 at 12:00 PM, Sara Golemon wrote:
> https://nikic.github.io/2014/12/22/PHPs-new-hashtable-implementation.html
>
> On Tue, May 16, 2017 at 4:28 AM, Pawel Por wrote:
> > Hi
> >
> > I'm trying to understand why PHP 7 hashtables are more efficient than
> > PHP 5 hashtables.
> > I
