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?
Thanks,
Rusty
Keep in mind that f you are using a byte-code cache such a APC or
eAccelerator (you're using one, right :) ), it probably won't be able to
cache the code for classes that are included conditionally.
So, the performance when using a byte-code cache generally goes
something like this:
require best
require_once ok
autoload or conditional include bad
Alvaro
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