Although in PHP you can also abuse the `::` for both static and non
static method calls it's actually not used for namespaces (unlike Ruby),
instead it uses backslashes for that. Although this means that there's
still two ways to call a method (syntax wise) you at least don't end up
using a syntax feature meant for something completely unrelated to
method calls.

PHP is also a terrible language so I don't think it's worth comparing to
at all.

Yorick