Fastest way to store easily editable config data in PHP?

Question

What is the fastest way to store config data in PHP so that it is easily changeable (via PHP)? First I thought about having config.php file, but I can\'t edit it on fly with

Answer 1

The way I store configuration is to put some variables in an external .php file and then when I want to use those files, I say:

And that would allow you to share configuration information across many pages. I am not, however, sure that this is the most efficient method, but it seemed to be the easiest to me.