Variables in all areas

Code:

$some_result = ClassName::singleton()->method();

Something like this would be nice, but you have to implement it. :-)

Edit: To be more precise:

Code:

$some_result = ClassName::factory()->method();

http://en.wikipedia.org/wiki/Factory_(ob...ogramming)

Or you can make a static facade:

Code:

$some_result = ClassName::staticMethod();

In addition, you would need to have autoloading organized, based on spl_*() functions. I don't know whether going in this direction is worth-while for you, because CodeIgniter 3 seemingly would not help here, you are on your own.