OT: (Way OT) PHP and MySQL concurrency control using MyISAM tables

Paul Schmehl pauls at utdallas.edu
Sun Mar 23 17:09:12 PDT 2008

--On March 24, 2008 9:03:35 AM +1000 Da Rock 
<rock_on_the_web at comcen.com.au> wrote:

> I know this is not quite the list for these things, but I tried the PHP
> list and got no reply whatsoever. In fact, I don't think anyone's home
> cause the entire list is silent...
> I'm trying to setup a system using web apps in PHP using MySQL as the
> backend database, only this time I need transaction services. According
> to the PHP manual if a transaction is served for MySQL it can come back
> as committed even though it may not. So what I'm trying to accomplish is
> develop some row level locking with the PHP script.
> I enquired about setting up a servlet (for want of a better term) with
> PHP, something that will serve the requests of the rest of the app. To
> be honest though, I'm not entirely sure how to approach this.
> Any ideas would be very welcome.

Following list etiquette, I'm replying to you and the list.

I believe that postgresql has transaction locking.  You might consider 
using it instead.  Mysql is supposed to have transaction locking in 
version 5.1, but I haven't tested it and don't know how robust it is.

Paul Schmehl (pauls at utdallas.edu)
Senior Information Security Analyst
The University of Texas at Dallas

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