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Posted by "Richard Lynch" on 08/18/05 11:44
On Thu, August 18, 2005 1:00 am, Chris Boget wrote:
> * User A accesses page X, which makes a connection to the database.
> Echoing
> out the result of the mssql_pconnect() function shows it's using
> 'Resource id #10'.
> * User B accesses the same page, X, making another connection to the
> database.
> Echosing out the result of the pconnection function shows it's using
> 'Resource id
> #10'
>
> Now, even though they are showing the same resource id, it's not
> actually the
> same connection, correct?
Correct.
If you echo out EVERY connection/result/resource, you will see that
PHP pretty much just starts counting at 1 at the beginning of a script
and increments the resource counter on each resource.
Change the script to, say, connect to some other database at the top,
and everything will be "off" by 1 from the previous user.
> BEGIN TRAN (user a)
> BEGIN TRAN (user b)
> Query (user b)
> Query (user a)
> ROLLBACK (user b)
> COMMIT (user a)
>
> with User B rolling back User A's transaction and User A committing
> User
> B's
> transaction (or no transaction at all).
Hmmmmm.
Take out the _pconnect.
Or switch to MySQL or PostgreSQL maybe for a test, just to see if
their transactions exhibit the same behaviour.
SQL Server is the least-broken Microsoft product...
You could also try using the Sybase drivers to connect to MS SQL.
Last I heard, they were faster anyway. Though it's been years since
anybody has had enough money to get me to use an MS product.
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