Re: persistent db connections in PHP

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От Scott Marlowe
Тема Re: persistent db connections in PHP
Дата
Msg-id 467980DB.2020805@g2switchworks.com
обсуждение исходный текст
Ответ на Re: persistent db connections in PHP  (lawpoop@gmail.com)
Ответы Re: persistent db connections in PHP  (Raymond O'Donnell <rod@iol.ie>)
Список pgsql-general
lawpoop@gmail.com wrote:
> This seems to be a problem with PHP, or at least my set up.
>
> I'm writing pages in basically the same way. Each page has an include
> at the top that gets you a database session. The function, either
> pg_connect() or mysql_connect(), is supposed to either create a new
> connection, or return your existing one.
>
> So after I have a connection, I can navigate to other pages, reload or
> post to the current one, trigger the x_connect(), and get the session
> I created earlier.
>
> In my Mysql site, if I create temporary tables, I still have access to
> them after I have traversed a mysql_connect. So it looks like PHP is
> giving me the connection I had when I created the temp tables.
>
> However, with this new Postgres site, I don't have access to my temp
> tables after I've traversed another pg_connect. So PHP is either
> creating a new connection, or giving me another session, not the one
> which I created my tables in.

MySQL reuses old connections within the same script.  PostgreSQL's php
extension does not, it starts a new connection each time.

MySQL's behaviour is surprising, PostgreSQL's behaviour is what you'd
expect.  Which is typical of both dbs.

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