Performance-define Vs. global vars

[R. Rajesh Jeba Anbiah]

I'm interested to know which one is better--define or global variables
especially for config stuffs.
For example, osCommerce use something like: define('db_user ', 'xx');
whereas phpMyAdmin uses like $config['server']['host'] =
'localhost';
and other few software use $db_pass = 'foo';

I'm much interested to know which one is good. Isn't hash array
like $config['server']['host'] overkill? TIA

--
| Just another PHP saint |
Email: rrjanbiah-at-Y!com

[Chung Leong]

Re: Performance-define Vs. global vars

"R. Rajesh Jeba Anbiah" <ng4rrjanbiah@r ediffmail.com> wrote in message
news:abc4d8b8.0 407090359.16ec4 152@posting.goo gle.com...[color=blue]
> I'm interested to know which one is better--define or global variables
> especially for config stuffs.
> For example, osCommerce use something like: define('db_user ', 'xx');
> whereas phpMyAdmin uses like $config['server']['host'] =
> 'localhost';
> and other few software use $db_pass = 'foo';
>
> I'm much interested to know which one is good. Isn't hash array
> like $config['server']['host'] overkill? TIA
>
> --
> | Just another PHP saint |
> Email: rrjanbiah-at-Y!com[/color]

Using define is a little better, since you don't run the risk of the
configuration being tampered with even if your application is running on a
server with register_global s turned on. Having said that, I must say that I
usually use $NAME, so that I can interpolate the value into strings.

In regards to performance, getting a constant should be quicker in theory,
since there's no need to resolve variable scope. The difference is hardly
something that you would lose sleep over though.

[R. Rajesh Jeba Anbiah]

Re: Performance-define Vs. global vars

"Chung Leong" <chernyshevsky@ hotmail.com> wrote in message news:<eq2dnVkCC 9bMVm3dRVn-vg@comcast.com> ...[color=blue][color=green]
> > I'm interested to know which one is better--define or global variables
> > especially for config stuffs.
> > For example, osCommerce use something like: define('db_user ', 'xx');
> > whereas phpMyAdmin uses like $config['server']['host'] =
> > 'localhost';
> > and other few software use $db_pass = 'foo';
> >
> > I'm much interested to know which one is good. Isn't hash array
> > like $config['server']['host'] overkill? TIA[/color]
>
> Using define is a little better, since you don't run the risk of the
> configuration being tampered with even if your application is running on a
> server with register_global s turned on. Having said that, I must say that I
> usually use $NAME, so that I can interpolate the value into strings.
>
> In regards to performance, getting a constant should be quicker in theory,
> since there's no need to resolve variable scope. The difference is hardly
> something that you would lose sleep over though.[/color]

Thanks Chung, for your wonderful comments and thoughts.

--
| Just another PHP saint |
Email: rrjanbiah-at-Y!com