Why do we need this?

[rusproject]

I'm new here so maybe I'm missing something. Can you please explain why can't we just use ini_get('memory_limit') and then, using the numeric value, get value in bytes by multiplying it by 1024**3 for 'G', 1024**2 for 'M' and 1024 for 'K'? A simple function could do it, doesn't it?

Just wondering if we really need a namespace, 5 new php files, and a composer on top to install the whole thing.