On Fri, 2008-04-18 at 09:13 -0700, Rusty Keele wrote:
> Hi,
>
> Which is a better approach to use:
>
> 1. require_once('path/to/class.php');
>
> or
>
> 2. if(!class_exists('path/to/class.php')) require('path/to/class.php');
>
> I have been using the first approach in all my files where I need to
> instantiate a specific class, but I am wondering if the second approach is
> more efficient? Are there any benefits to using the second approach - such
> as less caching of objects - or do these two statements do the same thing?
There is also a 3rd way... Autoloading.
http://us2.php.net/autoload
You can write your own custom __autoload function to require the files
you need if a class doesn't exists. It is very similar to #2, but can
automate it for all classes.
--lonnie
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